81301360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3541}}^1$

素因数の和:3602

約数の個数: 80

約数和(自身を含む): 221360832

約数和(自身を除く): 140059472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1435, 1640, 2296, 2870, 3280, 3541, 4592, 5740, 7082, 11480, 14164, 17705, 22960, 24787, 28328, 35410, 49574, 56656, 70820, 99148, 123935, 141640, 145181, 198296, 247870, 283280, 290362, 396592, 495740, 580724, 725905, 991480, 1016267, 1161448, 1451810, 1982960, 2032534, 2322896, 2903620, 4065068, 5081335, 5807240, 8130136, 10162670, 11614480, 16260272, 20325340, 40650680, 81301360]

約数ペア:

[(1, 81301360), (2, 40650680), (4, 20325340), (5, 16260272), (7, 11614480), (8, 10162670), (10, 8130136), (14, 5807240), (16, 5081335), (20, 4065068), (28, 2903620), (35, 2322896), (40, 2032534), (41, 1982960), (56, 1451810), (70, 1161448), (80, 1016267), (82, 991480), (112, 725905), (140, 580724), (164, 495740), (205, 396592), (280, 290362), (287, 283280), (328, 247870), (410, 198296), (560, 145181), (574, 141640), (656, 123935), (820, 99148), (1148, 70820), (1435, 56656), (1640, 49574), (2296, 35410), (2870, 28328), (3280, 24787), (3541, 22960), (4592, 17705), (5740, 14164), (7082, 11480)]