87857920

素因数分解:

$2^8\times 5^1\times {\mathrm{68639}}^1$

素因数の和:68660

約数の個数: 36

約数和(自身を含む): 210450240

約数和(自身を除く): 122592320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 68639, 137278, 274556, 343195, 549112, 686390, 1098224, 1372780, 2196448, 2745560, 4392896, 5491120, 8785792, 10982240, 17571584, 21964480, 43928960, 87857920]

約数ペア:

[(1, 87857920), (2, 43928960), (4, 21964480), (5, 17571584), (8, 10982240), (10, 8785792), (16, 5491120), (20, 4392896), (32, 2745560), (40, 2196448), (64, 1372780), (80, 1098224), (128, 686390), (160, 549112), (256, 343195), (320, 274556), (640, 137278), (1280, 68639)]