20145953860

素因数分解:

$2^2\times 5^1\times {\mathrm{31177}}^1\times {\mathrm{32309}}^1$

素因数の和:63495

約数の個数: 24

約数和(自身を含む): 42309169560

約数和(自身を除く): 22163215700

約数列:

[1, 2, 4, 5, 10, 20, 31177, 32309, 62354, 64618, 124708, 129236, 155885, 161545, 311770, 323090, 623540, 646180, 1007297693, 2014595386, 4029190772, 5036488465, 10072976930, 20145953860]

約数ペア:

[(1, 20145953860), (2, 10072976930), (4, 5036488465), (5, 4029190772), (10, 2014595386), (20, 1007297693), (31177, 646180), (32309, 623540), (62354, 323090), (64618, 311770), (124708, 161545), (129236, 155885)]