642775140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:424

約数の個数: 288

約数和(自身を含む): 2358720000

約数和(自身を除く): 1715944860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 49, 58, 60, 63, 70, 84, 87, 90, 98, 105, 116, 126, 140, 145, 147, 174, 180, 196, 203, 210, 245, 252, 261, 290, 294, 315, 343, 348, 359, 406, 420, 435, 441, 490, 522, 580, 588, 609, 630, 686, 718, 735, 812, 870, 882, 980, 1015, 1029, 1044, 1077, 1218, 1260, 1305, 1372, 1421, 1436, 1470, 1715, 1740, 1764, 1795, 1827, 2030, 2058, 2154, 2205, 2436, 2513, 2610, 2842, 2940, 3045, 3087, 3231, 3430, 3590, 3654, 4060, 4116, 4263, 4308, 4410, 5026, 5145, 5220, 5385, 5684, 6090, 6174, 6462, 6860, 7105, 7180, 7308, 7539, 8526, 8820, 9135, 9947, 10052, 10290, 10411, 10770, 12180, 12348, 12565, 12789, 12924, 14210, 15078, 15435, 16155, 17052, 17591, 18270, 19894, 20580, 20822, 21315, 21540, 22617, 25130, 25578, 28420, 29841, 30156, 30870, 31233, 32310, 35182, 36540, 37695, 39788, 41644, 42630, 45234, 49735, 50260, 51156, 52055, 52773, 59682, 61740, 62466, 63945, 64620, 70364, 72877, 75390, 85260, 87955, 89523, 90468, 93699, 99470, 104110, 105546, 113085, 119364, 123137, 124932, 127890, 145754, 149205, 150780, 156165, 158319, 175910, 179046, 187398, 198940, 208220, 211092, 218631, 226170, 246274, 255780, 263865, 291508, 298410, 312330, 316638, 351820, 358092, 364385, 369411, 374796, 437262, 447615, 452340, 468495, 492548, 510139, 527730, 596820, 615685, 624660, 633276, 655893, 728770, 738822, 791595, 874524, 895230, 936990, 1020278, 1055460, 1093155, 1108233, 1231370, 1311786, 1457540, 1477644, 1530417, 1583190, 1790460, 1847055, 1873980, 2040556, 2186310, 2216466, 2462740, 2550695, 2623572, 3060834, 3166380, 3279465, 3570973, 3694110, 4372620, 4432932, 4591251, 5101390, 5541165, 6121668, 6558930, 7141946, 7388220, 7652085, 9182502, 10202780, 10712919, 11082330, 13117860, 14283892, 15304170, 17854865, 18365004, 21425838, 22164660, 22956255, 30608340, 32138757, 35709730, 42851676, 45912510, 53564595, 64277514, 71419460, 91825020, 107129190, 128555028, 160693785, 214258380, 321387570, 642775140]

約数ペア:

[(1, 642775140), (2, 321387570), (3, 214258380), (4, 160693785), (5, 128555028), (6, 107129190), (7, 91825020), (9, 71419460), (10, 64277514), (12, 53564595), (14, 45912510), (15, 42851676), (18, 35709730), (20, 32138757), (21, 30608340), (28, 22956255), (29, 22164660), (30, 21425838), (35, 18365004), (36, 17854865), (42, 15304170), (45, 14283892), (49, 13117860), (58, 11082330), (60, 10712919), (63, 10202780), (70, 9182502), (84, 7652085), (87, 7388220), (90, 7141946), (98, 6558930), (105, 6121668), (116, 5541165), (126, 5101390), (140, 4591251), (145, 4432932), (147, 4372620), (174, 3694110), (180, 3570973), (196, 3279465), (203, 3166380), (210, 3060834), (245, 2623572), (252, 2550695), (261, 2462740), (290, 2216466), (294, 2186310), (315, 2040556), (343, 1873980), (348, 1847055), (359, 1790460), (406, 1583190), (420, 1530417), (435, 1477644), (441, 1457540), (490, 1311786), (522, 1231370), (580, 1108233), (588, 1093155), (609, 1055460), (630, 1020278), (686, 936990), (718, 895230), (735, 874524), (812, 791595), (870, 738822), (882, 728770), (980, 655893), (1015, 633276), (1029, 624660), (1044, 615685), (1077, 596820), (1218, 527730), (1260, 510139), (1305, 492548), (1372, 468495), (1421, 452340), (1436, 447615), (1470, 437262), (1715, 374796), (1740, 369411), (1764, 364385), (1795, 358092), (1827, 351820), (2030, 316638), (2058, 312330), (2154, 298410), (2205, 291508), (2436, 263865), (2513, 255780), (2610, 246274), (2842, 226170), (2940, 218631), (3045, 211092), (3087, 208220), (3231, 198940), (3430, 187398), (3590, 179046), (3654, 175910), (4060, 158319), (4116, 156165), (4263, 150780), (4308, 149205), (4410, 145754), (5026, 127890), (5145, 124932), (5220, 123137), (5385, 119364), (5684, 113085), (6090, 105546), (6174, 104110), (6462, 99470), (6860, 93699), (7105, 90468), (7180, 89523), (7308, 87955), (7539, 85260), (8526, 75390), (8820, 72877), (9135, 70364), (9947, 64620), (10052, 63945), (10290, 62466), (10411, 61740), (10770, 59682), (12180, 52773), (12348, 52055), (12565, 51156), (12789, 50260), (12924, 49735), (14210, 45234), (15078, 42630), (15435, 41644), (16155, 39788), (17052, 37695), (17591, 36540), (18270, 35182), (19894, 32310), (20580, 31233), (20822, 30870), (21315, 30156), (21540, 29841), (22617, 28420), (25130, 25578)]