28497420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^2\times {\mathrm{359}}^1$

素因数の和:394

約数の個数: 180

約数和(自身を含む): 104282640

約数和(自身を除く): 75785220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 90, 98, 105, 108, 126, 135, 140, 147, 162, 180, 189, 196, 210, 245, 252, 270, 294, 315, 324, 359, 378, 405, 420, 441, 490, 540, 567, 588, 630, 718, 735, 756, 810, 882, 945, 980, 1077, 1134, 1260, 1323, 1436, 1470, 1620, 1764, 1795, 1890, 2154, 2205, 2268, 2513, 2646, 2835, 2940, 3231, 3590, 3780, 3969, 4308, 4410, 5026, 5292, 5385, 5670, 6462, 6615, 7180, 7539, 7938, 8820, 9693, 10052, 10770, 11340, 12565, 12924, 13230, 15078, 15876, 16155, 17591, 19386, 19845, 21540, 22617, 25130, 26460, 29079, 30156, 32310, 35182, 37695, 38772, 39690, 45234, 48465, 50260, 52773, 58158, 64620, 67851, 70364, 75390, 79380, 87955, 90468, 96930, 105546, 113085, 116316, 135702, 145395, 150780, 158319, 175910, 193860, 203553, 211092, 226170, 263865, 271404, 290790, 316638, 339255, 351820, 407106, 452340, 474957, 527730, 581580, 633276, 678510, 791595, 814212, 949914, 1017765, 1055460, 1357020, 1424871, 1583190, 1899828, 2035530, 2374785, 2849742, 3166380, 4071060, 4749570, 5699484, 7124355, 9499140, 14248710, 28497420]

約数ペア:

[(1, 28497420), (2, 14248710), (3, 9499140), (4, 7124355), (5, 5699484), (6, 4749570), (7, 4071060), (9, 3166380), (10, 2849742), (12, 2374785), (14, 2035530), (15, 1899828), (18, 1583190), (20, 1424871), (21, 1357020), (27, 1055460), (28, 1017765), (30, 949914), (35, 814212), (36, 791595), (42, 678510), (45, 633276), (49, 581580), (54, 527730), (60, 474957), (63, 452340), (70, 407106), (81, 351820), (84, 339255), (90, 316638), (98, 290790), (105, 271404), (108, 263865), (126, 226170), (135, 211092), (140, 203553), (147, 193860), (162, 175910), (180, 158319), (189, 150780), (196, 145395), (210, 135702), (245, 116316), (252, 113085), (270, 105546), (294, 96930), (315, 90468), (324, 87955), (359, 79380), (378, 75390), (405, 70364), (420, 67851), (441, 64620), (490, 58158), (540, 52773), (567, 50260), (588, 48465), (630, 45234), (718, 39690), (735, 38772), (756, 37695), (810, 35182), (882, 32310), (945, 30156), (980, 29079), (1077, 26460), (1134, 25130), (1260, 22617), (1323, 21540), (1436, 19845), (1470, 19386), (1620, 17591), (1764, 16155), (1795, 15876), (1890, 15078), (2154, 13230), (2205, 12924), (2268, 12565), (2513, 11340), (2646, 10770), (2835, 10052), (2940, 9693), (3231, 8820), (3590, 7938), (3780, 7539), (3969, 7180), (4308, 6615), (4410, 6462), (5026, 5670), (5292, 5385)]