28101620

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{5879}}^1$

素因数の和:6127

約数の個数: 24

約数和(自身を含む): 59270400

約数和(自身を除く): 31168780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 5879, 11758, 23516, 29395, 58790, 117580, 1405081, 2810162, 5620324, 7025405, 14050810, 28101620]

約数ペア:

[(1, 28101620), (2, 14050810), (4, 7025405), (5, 5620324), (10, 2810162), (20, 1405081), (239, 117580), (478, 58790), (956, 29395), (1195, 23516), (2390, 11758), (4780, 5879)]