81620456

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{983}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 156219840

約数和(自身を除く): 74599384

約数列:

[1, 2, 4, 8, 97, 107, 194, 214, 388, 428, 776, 856, 983, 1966, 3932, 7864, 10379, 20758, 41516, 83032, 95351, 105181, 190702, 210362, 381404, 420724, 762808, 841448, 10202557, 20405114, 40810228, 81620456]

約数ペア:

[(1, 81620456), (2, 40810228), (4, 20405114), (8, 10202557), (97, 841448), (107, 762808), (194, 420724), (214, 381404), (388, 210362), (428, 190702), (776, 105181), (856, 95351), (983, 83032), (1966, 41516), (3932, 20758), (7864, 10379)]