20189493040

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{659}}^1\times {\mathrm{3389}}^1$

素因数の和:4174

約数の個数: 80

約数和(自身を含む): 47441829600

約数和(自身を除く): 27252336560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 659, 904, 1130, 1318, 1808, 2260, 2636, 3295, 3389, 4520, 5272, 6590, 6778, 9040, 10544, 13180, 13556, 16945, 26360, 27112, 33890, 52720, 54224, 67780, 74467, 135560, 148934, 271120, 297868, 372335, 382957, 595736, 744670, 765914, 1191472, 1489340, 1531828, 1914785, 2233351, 2978680, 3063656, 3829570, 4466702, 5957360, 6127312, 7659140, 8933404, 11166755, 15318280, 17866808, 22333510, 30636560, 35733616, 44667020, 89334040, 178668080, 252368663, 504737326, 1009474652, 1261843315, 2018949304, 2523686630, 4037898608, 5047373260, 10094746520, 20189493040]

約数ペア:

[(1, 20189493040), (2, 10094746520), (4, 5047373260), (5, 4037898608), (8, 2523686630), (10, 2018949304), (16, 1261843315), (20, 1009474652), (40, 504737326), (80, 252368663), (113, 178668080), (226, 89334040), (452, 44667020), (565, 35733616), (659, 30636560), (904, 22333510), (1130, 17866808), (1318, 15318280), (1808, 11166755), (2260, 8933404), (2636, 7659140), (3295, 6127312), (3389, 5957360), (4520, 4466702), (5272, 3829570), (6590, 3063656), (6778, 2978680), (9040, 2233351), (10544, 1914785), (13180, 1531828), (13556, 1489340), (16945, 1191472), (26360, 765914), (27112, 744670), (33890, 595736), (52720, 382957), (54224, 372335), (67780, 297868), (74467, 271120), (135560, 148934)]