20122544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1087}}^1$

素因数の和:1197

約数の個数: 40

約数和(自身を含む): 42497280

約数和(自身を除く): 22374736

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 1087, 1157, 1424, 2174, 2314, 4348, 4628, 8696, 9256, 14131, 17392, 18512, 28262, 56524, 96743, 113048, 193486, 226096, 386972, 773944, 1257659, 1547888, 2515318, 5030636, 10061272, 20122544]

約数ペア:

[(1, 20122544), (2, 10061272), (4, 5030636), (8, 2515318), (13, 1547888), (16, 1257659), (26, 773944), (52, 386972), (89, 226096), (104, 193486), (178, 113048), (208, 96743), (356, 56524), (712, 28262), (1087, 18512), (1157, 17392), (1424, 14131), (2174, 9256), (2314, 8696), (4348, 4628)]