61378960

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2467}}^1$

素因数の和:2791

約数の個数: 40

約数和(自身を含む): 143222976

約数和(自身を除く): 81844016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 2467, 2488, 3110, 4934, 4976, 6220, 9868, 12335, 12440, 19736, 24670, 24880, 39472, 49340, 98680, 197360, 767237, 1534474, 3068948, 3836185, 6137896, 7672370, 12275792, 15344740, 30689480, 61378960]

約数ペア:

[(1, 61378960), (2, 30689480), (4, 15344740), (5, 12275792), (8, 7672370), (10, 6137896), (16, 3836185), (20, 3068948), (40, 1534474), (80, 767237), (311, 197360), (622, 98680), (1244, 49340), (1555, 39472), (2467, 24880), (2488, 24670), (3110, 19736), (4934, 12440), (4976, 12335), (6220, 9868)]