20138763740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{2297}}^1$

素因数の和:2595

約数の個数: 96

約数和(自身を含む): 44474572800

約数和(自身を除く): 24335809060

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 179, 310, 316, 358, 395, 620, 716, 790, 895, 1580, 1790, 2297, 2449, 3580, 4594, 4898, 5549, 9188, 9796, 11098, 11485, 12245, 14141, 22196, 22970, 24490, 27745, 28282, 45940, 48980, 55490, 56564, 70705, 71207, 110980, 141410, 142414, 181463, 282820, 284828, 356035, 362926, 411163, 438371, 712070, 725852, 822326, 876742, 907315, 1424140, 1644652, 1753484, 1814630, 2055815, 2191855, 3629260, 4111630, 4383710, 5625353, 8223260, 8767420, 11250706, 12746053, 22501412, 25492106, 28126765, 32481877, 50984212, 56253530, 63730265, 64963754, 112507060, 127460530, 129927508, 162409385, 254921060, 324818770, 649637540, 1006938187, 2013876374, 4027752748, 5034690935, 10069381870, 20138763740]

約数ペア:

[(1, 20138763740), (2, 10069381870), (4, 5034690935), (5, 4027752748), (10, 2013876374), (20, 1006938187), (31, 649637540), (62, 324818770), (79, 254921060), (124, 162409385), (155, 129927508), (158, 127460530), (179, 112507060), (310, 64963754), (316, 63730265), (358, 56253530), (395, 50984212), (620, 32481877), (716, 28126765), (790, 25492106), (895, 22501412), (1580, 12746053), (1790, 11250706), (2297, 8767420), (2449, 8223260), (3580, 5625353), (4594, 4383710), (4898, 4111630), (5549, 3629260), (9188, 2191855), (9796, 2055815), (11098, 1814630), (11485, 1753484), (12245, 1644652), (14141, 1424140), (22196, 907315), (22970, 876742), (24490, 822326), (27745, 725852), (28282, 712070), (45940, 438371), (48980, 411163), (55490, 362926), (56564, 356035), (70705, 284828), (71207, 282820), (110980, 181463), (141410, 142414)]