20121544816

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{401}}^1\times {\mathrm{31051}}^1$

素因数の和:31561

約数の個数: 40

約数和(自身を含む): 39470942448

約数和(自身を除く): 19349397632

約数列:

[1, 2, 4, 8, 16, 101, 202, 401, 404, 802, 808, 1604, 1616, 3208, 6416, 31051, 40501, 62102, 81002, 124204, 162004, 248408, 324008, 496816, 648016, 3136151, 6272302, 12451451, 12544604, 24902902, 25089208, 49805804, 50178416, 99611608, 199223216, 1257596551, 2515193102, 5030386204, 10060772408, 20121544816]

約数ペア:

[(1, 20121544816), (2, 10060772408), (4, 5030386204), (8, 2515193102), (16, 1257596551), (101, 199223216), (202, 99611608), (401, 50178416), (404, 49805804), (802, 25089208), (808, 24902902), (1604, 12544604), (1616, 12451451), (3208, 6272302), (6416, 3136151), (31051, 648016), (40501, 496816), (62102, 324008), (81002, 248408), (124204, 162004)]