3987985

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 16

約数和(自身を含む): 4957200

約数和(自身を除く): 969215

約数列:

[1, 5, 53, 101, 149, 265, 505, 745, 5353, 7897, 15049, 26765, 39485, 75245, 797597, 3987985]

約数ペア:

[(1, 3987985), (5, 797597), (53, 75245), (101, 39485), (149, 26765), (265, 15049), (505, 7897), (745, 5353)]