1290980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3797}}^1$

素因数の和:3823

約数の個数: 24

約数和(自身を含む): 2871288

約数和(自身を除く): 1580308

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 3797, 7594, 15188, 18985, 37970, 64549, 75940, 129098, 258196, 322745, 645490, 1290980]

約数ペア:

[(1, 1290980), (2, 645490), (4, 322745), (5, 258196), (10, 129098), (17, 75940), (20, 64549), (34, 37970), (68, 18985), (85, 15188), (170, 7594), (340, 3797)]