31091830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 70502400

約数和(自身を除く): 39410570

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 149, 154, 271, 298, 385, 542, 745, 770, 1043, 1355, 1490, 1639, 1897, 2086, 2710, 2981, 3278, 3794, 5215, 5962, 8195, 9485, 10430, 11473, 14905, 16390, 18970, 20867, 22946, 29810, 40379, 41734, 57365, 80758, 104335, 114730, 201895, 208670, 282653, 403790, 444169, 565306, 888338, 1413265, 2220845, 2826530, 3109183, 4441690, 6218366, 15545915, 31091830]

約数ペア:

[(1, 31091830), (2, 15545915), (5, 6218366), (7, 4441690), (10, 3109183), (11, 2826530), (14, 2220845), (22, 1413265), (35, 888338), (55, 565306), (70, 444169), (77, 403790), (110, 282653), (149, 208670), (154, 201895), (271, 114730), (298, 104335), (385, 80758), (542, 57365), (745, 41734), (770, 40379), (1043, 29810), (1355, 22946), (1490, 20867), (1639, 18970), (1897, 16390), (2086, 14905), (2710, 11473), (2981, 10430), (3278, 9485), (3794, 8195), (5215, 5962)]