90644560

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{11681}}^1$

素因数の和:11791

約数の個数: 40

約数和(自身を含む): 212939496

約数和(自身を除く): 122294936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 11681, 23362, 46724, 58405, 93448, 116810, 186896, 233620, 467240, 934480, 1133057, 2266114, 4532228, 5665285, 9064456, 11330570, 18128912, 22661140, 45322280, 90644560]

約数ペア:

[(1, 90644560), (2, 45322280), (4, 22661140), (5, 18128912), (8, 11330570), (10, 9064456), (16, 5665285), (20, 4532228), (40, 2266114), (80, 1133057), (97, 934480), (194, 467240), (388, 233620), (485, 186896), (776, 116810), (970, 93448), (1552, 58405), (1940, 46724), (3880, 23362), (7760, 11681)]