15189940

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{4243}}^1$

素因数の和:4431

約数の個数: 24

約数和(自身を含む): 32084640

約数和(自身を除く): 16894700

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 4243, 8486, 16972, 21215, 42430, 84860, 759497, 1518994, 3037988, 3797485, 7594970, 15189940]

約数ペア:

[(1, 15189940), (2, 7594970), (4, 3797485), (5, 3037988), (10, 1518994), (20, 759497), (179, 84860), (358, 42430), (716, 21215), (895, 16972), (1790, 8486), (3580, 4243)]