40964020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66071}}^1$

素因数の和:66111

約数の個数: 24

約数和(自身を含む): 88800768

約数和(自身を除く): 47836748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 66071, 132142, 264284, 330355, 660710, 1321420, 2048201, 4096402, 8192804, 10241005, 20482010, 40964020]

約数ペア:

[(1, 40964020), (2, 20482010), (4, 10241005), (5, 8192804), (10, 4096402), (20, 2048201), (31, 1321420), (62, 660710), (124, 330355), (155, 264284), (310, 132142), (620, 66071)]