7642240

素因数分解:

$2^7\times 5^1\times {\mathrm{11941}}^1$

素因数の和:11960

約数の個数: 32

約数和(自身を含む): 18271260

約数和(自身を除く): 10629020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 11941, 23882, 47764, 59705, 95528, 119410, 191056, 238820, 382112, 477640, 764224, 955280, 1528448, 1910560, 3821120, 7642240]

約数ペア:

[(1, 7642240), (2, 3821120), (4, 1910560), (5, 1528448), (8, 955280), (10, 764224), (16, 477640), (20, 382112), (32, 238820), (40, 191056), (64, 119410), (80, 95528), (128, 59705), (160, 47764), (320, 23882), (640, 11941)]