248850440

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{11941}}^1$

素因数の和:12473

約数の個数: 32

約数和(自身を含む): 561035160

約数和(自身を除く): 312184720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4168, 5210, 10420, 11941, 20840, 23882, 47764, 59705, 95528, 119410, 238820, 477640, 6221261, 12442522, 24885044, 31106305, 49770088, 62212610, 124425220, 248850440]

約数ペア:

[(1, 248850440), (2, 124425220), (4, 62212610), (5, 49770088), (8, 31106305), (10, 24885044), (20, 12442522), (40, 6221261), (521, 477640), (1042, 238820), (2084, 119410), (2605, 95528), (4168, 59705), (5210, 47764), (10420, 23882), (11941, 20840)]