1640991780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1\times {\mathrm{809}}^1$

素因数の和:1074

約数の個数: 144

約数和(自身を含む): 5094835200

約数和(自身を除く): 3453843420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 191, 236, 295, 354, 382, 531, 573, 590, 708, 764, 809, 885, 955, 1062, 1146, 1180, 1618, 1719, 1770, 1910, 2124, 2292, 2427, 2655, 2865, 3236, 3438, 3540, 3820, 4045, 4854, 5310, 5730, 6876, 7281, 8090, 8595, 9708, 10620, 11269, 11460, 12135, 14562, 16180, 17190, 22538, 24270, 29124, 33807, 34380, 36405, 45076, 47731, 48540, 56345, 67614, 72810, 95462, 101421, 112690, 135228, 143193, 145620, 154519, 169035, 190924, 202842, 225380, 238655, 286386, 309038, 338070, 405684, 429579, 463557, 477310, 507105, 572772, 618076, 676140, 715965, 772595, 859158, 927114, 954620, 1014210, 1390671, 1431930, 1545190, 1718316, 1854228, 2028420, 2147895, 2317785, 2781342, 2863860, 3090380, 4295790, 4635570, 5562684, 6953355, 8591580, 9116621, 9271140, 13906710, 18233242, 27349863, 27813420, 36466484, 45583105, 54699726, 82049589, 91166210, 109399452, 136749315, 164099178, 182332420, 273498630, 328198356, 410247945, 546997260, 820495890, 1640991780]

約数ペア:

[(1, 1640991780), (2, 820495890), (3, 546997260), (4, 410247945), (5, 328198356), (6, 273498630), (9, 182332420), (10, 164099178), (12, 136749315), (15, 109399452), (18, 91166210), (20, 82049589), (30, 54699726), (36, 45583105), (45, 36466484), (59, 27813420), (60, 27349863), (90, 18233242), (118, 13906710), (177, 9271140), (180, 9116621), (191, 8591580), (236, 6953355), (295, 5562684), (354, 4635570), (382, 4295790), (531, 3090380), (573, 2863860), (590, 2781342), (708, 2317785), (764, 2147895), (809, 2028420), (885, 1854228), (955, 1718316), (1062, 1545190), (1146, 1431930), (1180, 1390671), (1618, 1014210), (1719, 954620), (1770, 927114), (1910, 859158), (2124, 772595), (2292, 715965), (2427, 676140), (2655, 618076), (2865, 572772), (3236, 507105), (3438, 477310), (3540, 463557), (3820, 429579), (4045, 405684), (4854, 338070), (5310, 309038), (5730, 286386), (6876, 238655), (7281, 225380), (8090, 202842), (8595, 190924), (9708, 169035), (10620, 154519), (11269, 145620), (11460, 143193), (12135, 135228), (14562, 112690), (16180, 101421), (17190, 95462), (22538, 72810), (24270, 67614), (29124, 56345), (33807, 48540), (34380, 47731), (36405, 45076)]