20018786970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1627}}^1\times {\mathrm{4507}}^1$

素因数の和:6164

約数の個数: 128

約数和(自身を含む): 59181889536

約数和(自身を除く): 39163102566

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 1627, 2730, 3254, 4507, 4881, 8135, 9014, 9762, 11389, 13521, 16270, 21151, 22535, 22778, 24405, 27042, 31549, 34167, 42302, 45070, 48810, 56945, 58591, 63098, 63453, 67605, 68334, 94647, 105755, 113890, 117182, 126906, 135210, 148057, 157745, 170835, 175773, 189294, 211510, 292955, 296114, 315490, 317265, 341670, 351546, 410137, 444171, 473235, 585910, 634530, 740285, 820274, 878865, 888342, 946470, 1230411, 1480570, 1757730, 2050685, 2220855, 2460822, 4101370, 4441710, 6152055, 7332889, 12304110, 14665778, 21998667, 36664445, 43997334, 51330223, 73328890, 95327557, 102660446, 109993335, 153990669, 190655114, 219986670, 256651115, 285982671, 307981338, 476637785, 513302230, 571965342, 667292899, 769953345, 953275570, 1334585798, 1429913355, 1539906690, 2001878697, 2859826710, 3336464495, 4003757394, 6672928990, 10009393485, 20018786970]

約数ペア:

[(1, 20018786970), (2, 10009393485), (3, 6672928990), (5, 4003757394), (6, 3336464495), (7, 2859826710), (10, 2001878697), (13, 1539906690), (14, 1429913355), (15, 1334585798), (21, 953275570), (26, 769953345), (30, 667292899), (35, 571965342), (39, 513302230), (42, 476637785), (65, 307981338), (70, 285982671), (78, 256651115), (91, 219986670), (105, 190655114), (130, 153990669), (182, 109993335), (195, 102660446), (210, 95327557), (273, 73328890), (390, 51330223), (455, 43997334), (546, 36664445), (910, 21998667), (1365, 14665778), (1627, 12304110), (2730, 7332889), (3254, 6152055), (4507, 4441710), (4881, 4101370), (8135, 2460822), (9014, 2220855), (9762, 2050685), (11389, 1757730), (13521, 1480570), (16270, 1230411), (21151, 946470), (22535, 888342), (22778, 878865), (24405, 820274), (27042, 740285), (31549, 634530), (34167, 585910), (42302, 473235), (45070, 444171), (48810, 410137), (56945, 351546), (58591, 341670), (63098, 317265), (63453, 315490), (67605, 296114), (68334, 292955), (94647, 211510), (105755, 189294), (113890, 175773), (117182, 170835), (126906, 157745), (135210, 148057)]