400000081

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1\times {\mathrm{1493}}^1$

素因数の和:2100

約数の個数: 16

約数和(自身を含む): 443502864

約数和(自身を除く): 43502783

約数列:

[1, 13, 37, 481, 557, 1493, 7241, 19409, 20609, 55241, 267917, 718133, 831601, 10810813, 30769237, 400000081]

約数ペア:

[(1, 400000081), (13, 30769237), (37, 10810813), (481, 831601), (557, 718133), (1493, 267917), (7241, 55241), (19409, 20609)]