64200040

素因数分解:

$2^3\times 5^1\times {\mathrm{1605001}}^1$

素因数の和:1605012

約数の個数: 16

約数和(自身を含む): 144450180

約数和(自身を除く): 80250140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1605001, 3210002, 6420004, 8025005, 12840008, 16050010, 32100020, 64200040]

約数ペア:

[(1, 64200040), (2, 32100020), (4, 16050010), (5, 12840008), (8, 8025005), (10, 6420004), (20, 3210002), (40, 1605001)]