628930180

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{137321}}^1$

素因数の和:137559

約数の個数: 24

約数和(自身を含む): 1326530520

約数和(自身を除く): 697600340

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 137321, 274642, 549284, 686605, 1373210, 2746420, 31446509, 62893018, 125786036, 157232545, 314465090, 628930180]

約数ペア:

[(1, 628930180), (2, 314465090), (4, 157232545), (5, 125786036), (10, 62893018), (20, 31446509), (229, 2746420), (458, 1373210), (916, 686605), (1145, 549284), (2290, 274642), (4580, 137321)]