289905260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{8623}}^1$

素因数の和:8714

約数の個数: 36

約数和(自身を含む): 624084384

約数和(自身を除く): 334179124

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1681, 3362, 6724, 8405, 8623, 16810, 17246, 33620, 34492, 43115, 86230, 172460, 353543, 707086, 1414172, 1767715, 3535430, 7070860, 14495263, 28990526, 57981052, 72476315, 144952630, 289905260]

約数ペア:

[(1, 289905260), (2, 144952630), (4, 72476315), (5, 57981052), (10, 28990526), (20, 14495263), (41, 7070860), (82, 3535430), (164, 1767715), (205, 1414172), (410, 707086), (820, 353543), (1681, 172460), (3362, 86230), (6724, 43115), (8405, 34492), (8623, 33620), (16810, 17246)]