1316173640

素因数分解:

$2^3\times 5^1\times {\mathrm{1861}}^1\times {\mathrm{17681}}^1$

素因数の和:19553

約数の個数: 32

約数和(自身を含む): 2963149560

約数和(自身を除く): 1646975920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1861, 3722, 7444, 9305, 14888, 17681, 18610, 35362, 37220, 70724, 74440, 88405, 141448, 176810, 353620, 707240, 32904341, 65808682, 131617364, 164521705, 263234728, 329043410, 658086820, 1316173640]

約数ペア:

[(1, 1316173640), (2, 658086820), (4, 329043410), (5, 263234728), (8, 164521705), (10, 131617364), (20, 65808682), (40, 32904341), (1861, 707240), (3722, 353620), (7444, 176810), (9305, 141448), (14888, 88405), (17681, 74440), (18610, 70724), (35362, 37220)]