31389830

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{21067}}^1$

素因数の和:21223

約数の個数: 16

約数和(自身を含む): 56883600

約数和(自身を除く): 25493770

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 21067, 42134, 105335, 210670, 3138983, 6277966, 15694915, 31389830]

約数ペア:

[(1, 31389830), (2, 15694915), (5, 6277966), (10, 3138983), (149, 210670), (298, 105335), (745, 42134), (1490, 21067)]