81694540

素因数分解:

$2^2\times 5^1\times {\mathrm{701}}^1\times {\mathrm{5827}}^1$

素因数の和:6537

約数の個数: 24

約数和(自身を含む): 171832752

約数和(自身を除く): 90138212

約数列:

[1, 2, 4, 5, 10, 20, 701, 1402, 2804, 3505, 5827, 7010, 11654, 14020, 23308, 29135, 58270, 116540, 4084727, 8169454, 16338908, 20423635, 40847270, 81694540]

約数ペア:

[(1, 81694540), (2, 40847270), (4, 20423635), (5, 16338908), (10, 8169454), (20, 4084727), (701, 116540), (1402, 58270), (2804, 29135), (3505, 23308), (5827, 14020), (7010, 11654)]