64603640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{15991}}^1$

素因数の和:16103

約数の個数: 32

約数和(自身を含む): 146806560

約数和(自身を除く): 82202920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 15991, 31982, 63964, 79955, 127928, 159910, 319820, 639640, 1615091, 3230182, 6460364, 8075455, 12920728, 16150910, 32301820, 64603640]

約数ペア:

[(1, 64603640), (2, 32301820), (4, 16150910), (5, 12920728), (8, 8075455), (10, 6460364), (20, 3230182), (40, 1615091), (101, 639640), (202, 319820), (404, 159910), (505, 127928), (808, 79955), (1010, 63964), (2020, 31982), (4040, 15991)]