66830420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107791}}^1$

素因数の和:107831

約数の個数: 24

約数和(自身を含む): 144872448

約数和(自身を除く): 78042028

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 107791, 215582, 431164, 538955, 1077910, 2155820, 3341521, 6683042, 13366084, 16707605, 33415210, 66830420]

約数ペア:

[(1, 66830420), (2, 33415210), (4, 16707605), (5, 13366084), (10, 6683042), (20, 3341521), (31, 2155820), (62, 1077910), (124, 538955), (155, 431164), (310, 215582), (620, 107791)]