15690980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9931}}^1$

素因数の和:10019

約数の個数: 24

約数和(自身を含む): 33371520

約数和(自身を除く): 17680540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 9931, 19862, 39724, 49655, 99310, 198620, 784549, 1569098, 3138196, 3922745, 7845490, 15690980]

約数ペア:

[(1, 15690980), (2, 7845490), (4, 3922745), (5, 3138196), (10, 1569098), (20, 784549), (79, 198620), (158, 99310), (316, 49655), (395, 39724), (790, 19862), (1580, 9931)]