661873405

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1\times {\mathrm{4283}}^1$

素因数の和:5316

約数の個数: 16

約数和(自身を含む): 820882944

約数和(自身を除く): 159009539

約数列:

[1, 5, 31, 155, 997, 4283, 4985, 21415, 30907, 132773, 154535, 663865, 4270151, 21350755, 132374681, 661873405]

約数ペア:

[(1, 661873405), (5, 132374681), (31, 21350755), (155, 4270151), (997, 663865), (4283, 154535), (4985, 132773), (21415, 30907)]