648946405

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{28099}}^1$

素因数の和:28284

約数の個数: 16

約数和(自身を含む): 809280000

約数和(自身を除く): 160333595

約数列:

[1, 5, 31, 149, 155, 745, 4619, 23095, 28099, 140495, 871069, 4186751, 4355345, 20933755, 129789281, 648946405]

約数ペア:

[(1, 648946405), (5, 129789281), (31, 20933755), (149, 4355345), (155, 4186751), (745, 871069), (4619, 140495), (23095, 28099)]