51487360

素因数分解:

$2^7\times 5^1\times {\mathrm{80449}}^1$

素因数の和:80468

約数の個数: 32

約数和(自身を含む): 123088500

約数和(自身を除く): 71601140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 80449, 160898, 321796, 402245, 643592, 804490, 1287184, 1608980, 2574368, 3217960, 5148736, 6435920, 10297472, 12871840, 25743680, 51487360]

約数ペア:

[(1, 51487360), (2, 25743680), (4, 12871840), (5, 10297472), (8, 6435920), (10, 5148736), (16, 3217960), (20, 2574368), (32, 1608980), (40, 1287184), (64, 804490), (80, 643592), (128, 402245), (160, 321796), (320, 160898), (640, 80449)]