40814540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{156979}}^1$

素因数の和:157001

約数の個数: 24

約数和(自身を含む): 92304240

約数和(自身を除く): 51489700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 156979, 313958, 627916, 784895, 1569790, 2040727, 3139580, 4081454, 8162908, 10203635, 20407270, 40814540]

約数ペア:

[(1, 40814540), (2, 20407270), (4, 10203635), (5, 8162908), (10, 4081454), (13, 3139580), (20, 2040727), (26, 1569790), (52, 784895), (65, 627916), (130, 313958), (260, 156979)]