20389631792

素因数分解:

$2^4\times {\mathrm{6427}}^1\times {\mathrm{198281}}^1$

素因数の和:204716

約数の個数: 20

約数和(自身を含む): 39511257576

約数和(自身を除く): 19121625784

約数列:

[1, 2, 4, 8, 16, 6427, 12854, 25708, 51416, 102832, 198281, 396562, 793124, 1586248, 3172496, 1274351987, 2548703974, 5097407948, 10194815896, 20389631792]

約数ペア:

[(1, 20389631792), (2, 10194815896), (4, 5097407948), (8, 2548703974), (16, 1274351987), (6427, 3172496), (12854, 1586248), (25708, 793124), (51416, 396562), (102832, 198281)]