661147920

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{397}}^1$

素因数の和:679

約数の個数: 200

約数和(自身を含む): 2311006104

約数和(自身を除く): 1649858184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 257, 270, 324, 360, 397, 405, 432, 514, 540, 648, 720, 771, 794, 810, 1028, 1080, 1191, 1285, 1296, 1542, 1588, 1620, 1985, 2056, 2160, 2313, 2382, 2570, 3084, 3176, 3240, 3573, 3855, 3970, 4112, 4626, 4764, 5140, 5955, 6168, 6352, 6480, 6939, 7146, 7710, 7940, 9252, 9528, 10280, 10719, 11565, 11910, 12336, 13878, 14292, 15420, 15880, 17865, 18504, 19056, 20560, 20817, 21438, 23130, 23820, 27756, 28584, 30840, 31760, 32157, 34695, 35730, 37008, 41634, 42876, 46260, 47640, 53595, 55512, 57168, 61680, 64314, 69390, 71460, 83268, 85752, 92520, 95280, 102029, 104085, 107190, 111024, 128628, 138780, 142920, 160785, 166536, 171504, 185040, 204058, 208170, 214380, 257256, 277560, 285840, 306087, 321570, 333072, 408116, 416340, 428760, 510145, 514512, 555120, 612174, 643140, 816232, 832680, 857520, 918261, 1020290, 1224348, 1286280, 1530435, 1632464, 1665360, 1836522, 2040580, 2448696, 2572560, 2754783, 3060870, 3673044, 4081160, 4591305, 4897392, 5509566, 6121740, 7346088, 8162320, 8264349, 9182610, 11019132, 12243480, 13773915, 14692176, 16528698, 18365220, 22038264, 24486960, 27547830, 33057396, 36730440, 41321745, 44076528, 55095660, 66114792, 73460880, 82643490, 110191320, 132229584, 165286980, 220382640, 330573960, 661147920]

約数ペア:

[(1, 661147920), (2, 330573960), (3, 220382640), (4, 165286980), (5, 132229584), (6, 110191320), (8, 82643490), (9, 73460880), (10, 66114792), (12, 55095660), (15, 44076528), (16, 41321745), (18, 36730440), (20, 33057396), (24, 27547830), (27, 24486960), (30, 22038264), (36, 18365220), (40, 16528698), (45, 14692176), (48, 13773915), (54, 12243480), (60, 11019132), (72, 9182610), (80, 8264349), (81, 8162320), (90, 7346088), (108, 6121740), (120, 5509566), (135, 4897392), (144, 4591305), (162, 4081160), (180, 3673044), (216, 3060870), (240, 2754783), (257, 2572560), (270, 2448696), (324, 2040580), (360, 1836522), (397, 1665360), (405, 1632464), (432, 1530435), (514, 1286280), (540, 1224348), (648, 1020290), (720, 918261), (771, 857520), (794, 832680), (810, 816232), (1028, 643140), (1080, 612174), (1191, 555120), (1285, 514512), (1296, 510145), (1542, 428760), (1588, 416340), (1620, 408116), (1985, 333072), (2056, 321570), (2160, 306087), (2313, 285840), (2382, 277560), (2570, 257256), (3084, 214380), (3176, 208170), (3240, 204058), (3573, 185040), (3855, 171504), (3970, 166536), (4112, 160785), (4626, 142920), (4764, 138780), (5140, 128628), (5955, 111024), (6168, 107190), (6352, 104085), (6480, 102029), (6939, 95280), (7146, 92520), (7710, 85752), (7940, 83268), (9252, 71460), (9528, 69390), (10280, 64314), (10719, 61680), (11565, 57168), (11910, 55512), (12336, 53595), (13878, 47640), (14292, 46260), (15420, 42876), (15880, 41634), (17865, 37008), (18504, 35730), (19056, 34695), (20560, 32157), (20817, 31760), (21438, 30840), (23130, 28584), (23820, 27756)]