20917650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:676

約数の個数: 96

約数和(自身を含む): 59246208

約数和(自身を除く): 38328558

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 25, 26, 30, 34, 39, 50, 51, 65, 75, 78, 85, 102, 130, 150, 170, 195, 221, 255, 325, 390, 425, 442, 510, 631, 650, 663, 850, 975, 1105, 1262, 1275, 1326, 1893, 1950, 2210, 2550, 3155, 3315, 3786, 5525, 6310, 6630, 8203, 9465, 10727, 11050, 15775, 16406, 16575, 18930, 21454, 24609, 31550, 32181, 33150, 41015, 47325, 49218, 53635, 64362, 82030, 94650, 107270, 123045, 139451, 160905, 205075, 246090, 268175, 278902, 321810, 410150, 418353, 536350, 615225, 697255, 804525, 836706, 1230450, 1394510, 1609050, 2091765, 3486275, 4183530, 6972550, 10458825, 20917650]

約数ペア:

[(1, 20917650), (2, 10458825), (3, 6972550), (5, 4183530), (6, 3486275), (10, 2091765), (13, 1609050), (15, 1394510), (17, 1230450), (25, 836706), (26, 804525), (30, 697255), (34, 615225), (39, 536350), (50, 418353), (51, 410150), (65, 321810), (75, 278902), (78, 268175), (85, 246090), (102, 205075), (130, 160905), (150, 139451), (170, 123045), (195, 107270), (221, 94650), (255, 82030), (325, 64362), (390, 53635), (425, 49218), (442, 47325), (510, 41015), (631, 33150), (650, 32181), (663, 31550), (850, 24609), (975, 21454), (1105, 18930), (1262, 16575), (1275, 16406), (1326, 15775), (1893, 11050), (1950, 10727), (2210, 9465), (2550, 8203), (3155, 6630), (3315, 6310), (3786, 5525)]