19870870

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25153}}^1$

素因数の和:25239

約数の個数: 16

約数和(自身を含む): 36221760

約数和(自身を除く): 16350890

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 25153, 50306, 125765, 251530, 1987087, 3974174, 9935435, 19870870]

約数ペア:

[(1, 19870870), (2, 9935435), (5, 3974174), (10, 1987087), (79, 251530), (158, 125765), (395, 50306), (790, 25153)]