64450580

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{7691}}^1$

素因数の和:8119

約数の個数: 24

約数和(自身を含む): 135686880

約数和(自身を除く): 71236300

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 4190, 7691, 8380, 15382, 30764, 38455, 76910, 153820, 3222529, 6445058, 12890116, 16112645, 32225290, 64450580]

約数ペア:

[(1, 64450580), (2, 32225290), (4, 16112645), (5, 12890116), (10, 6445058), (20, 3222529), (419, 153820), (838, 76910), (1676, 38455), (2095, 30764), (4190, 15382), (7691, 8380)]