19860860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{26839}}^1$

素因数の和:26885

約数の個数: 24

約数和(自身を含む): 42836640

約数和(自身を除く): 22975780

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 26839, 53678, 107356, 134195, 268390, 536780, 993043, 1986086, 3972172, 4965215, 9930430, 19860860]

約数ペア:

[(1, 19860860), (2, 9930430), (4, 4965215), (5, 3972172), (10, 1986086), (20, 993043), (37, 536780), (74, 268390), (148, 134195), (185, 107356), (370, 53678), (740, 26839)]