13254980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21379}}^1$

素因数の和:21419

約数の個数: 24

約数和(自身を含む): 28734720

約数和(自身を除く): 15479740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21379, 42758, 85516, 106895, 213790, 427580, 662749, 1325498, 2650996, 3313745, 6627490, 13254980]

約数ペア:

[(1, 13254980), (2, 6627490), (4, 3313745), (5, 2650996), (10, 1325498), (20, 662749), (31, 427580), (62, 213790), (124, 106895), (155, 85516), (310, 42758), (620, 21379)]