28043420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17749}}^1$

素因数の和:17837

約数の個数: 24

約数和(自身を含む): 59640000

約数和(自身を除く): 31596580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 17749, 35498, 70996, 88745, 177490, 354980, 1402171, 2804342, 5608684, 7010855, 14021710, 28043420]

約数ペア:

[(1, 28043420), (2, 14021710), (4, 7010855), (5, 5608684), (10, 2804342), (20, 1402171), (79, 354980), (158, 177490), (316, 88745), (395, 70996), (790, 35498), (1580, 17749)]