20284696

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 39037680

約数和(自身を除く): 18752984

約数列:

[1, 2, 4, 8, 61, 122, 197, 211, 244, 394, 422, 488, 788, 844, 1576, 1688, 12017, 12871, 24034, 25742, 41567, 48068, 51484, 83134, 96136, 102968, 166268, 332536, 2535587, 5071174, 10142348, 20284696]

約数ペア:

[(1, 20284696), (2, 10142348), (4, 5071174), (8, 2535587), (61, 332536), (122, 166268), (197, 102968), (211, 96136), (244, 83134), (394, 51484), (422, 48068), (488, 41567), (788, 25742), (844, 24034), (1576, 12871), (1688, 12017)]