64861190

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 118972800

約数和(自身を除く): 54111610

約数列:

[1, 2, 5, 10, 101, 149, 202, 298, 431, 505, 745, 862, 1010, 1490, 2155, 4310, 15049, 30098, 43531, 64219, 75245, 87062, 128438, 150490, 217655, 321095, 435310, 642190, 6486119, 12972238, 32430595, 64861190]

約数ペア:

[(1, 64861190), (2, 32430595), (5, 12972238), (10, 6486119), (101, 642190), (149, 435310), (202, 321095), (298, 217655), (431, 150490), (505, 128438), (745, 87062), (862, 75245), (1010, 64219), (1490, 43531), (2155, 30098), (4310, 15049)]