20640796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{7951}}^1$

素因数の和:8025

約数の個数: 24

約数和(自身を含む): 40078080

約数和(自身を除く): 19437284

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 236, 649, 1298, 2596, 7951, 15902, 31804, 87461, 174922, 349844, 469109, 938218, 1876436, 5160199, 10320398, 20640796]

約数ペア:

[(1, 20640796), (2, 10320398), (4, 5160199), (11, 1876436), (22, 938218), (44, 469109), (59, 349844), (118, 174922), (236, 87461), (649, 31804), (1298, 15902), (2596, 7951)]