15721812290

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1\times {\mathrm{21821}}^1$

素因数の和:22598

約数の個数: 32

約数和(自身を含む): 28603404720

約数和(自身を除く): 12881592430

約数列:

[1, 2, 5, 10, 109, 218, 545, 661, 1090, 1322, 3305, 6610, 21821, 43642, 72049, 109105, 144098, 218210, 360245, 720490, 2378489, 4756978, 11892445, 14423681, 23784890, 28847362, 72118405, 144236810, 1572181229, 3144362458, 7860906145, 15721812290]

約数ペア:

[(1, 15721812290), (2, 7860906145), (5, 3144362458), (10, 1572181229), (109, 144236810), (218, 72118405), (545, 28847362), (661, 23784890), (1090, 14423681), (1322, 11892445), (3305, 4756978), (6610, 2378489), (21821, 720490), (43642, 360245), (72049, 218210), (109105, 144098)]