20456008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2281}}^1$

素因数の和:2365

約数の個数: 32

約数和(自身を含む): 41076000

約数和(自身を除く): 20619992

約数列:

[1, 2, 4, 8, 19, 38, 59, 76, 118, 152, 236, 472, 1121, 2242, 2281, 4484, 4562, 8968, 9124, 18248, 43339, 86678, 134579, 173356, 269158, 346712, 538316, 1076632, 2557001, 5114002, 10228004, 20456008]

約数ペア:

[(1, 20456008), (2, 10228004), (4, 5114002), (8, 2557001), (19, 1076632), (38, 538316), (59, 346712), (76, 269158), (118, 173356), (152, 134579), (236, 86678), (472, 43339), (1121, 18248), (2242, 9124), (2281, 8968), (4484, 4562)]