31688865

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2851}}^1$

素因数の和:2894

約数の個数: 48

約数和(自身を含む): 62287680

約数和(自身を除く): 30598815

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 2223, 2851, 3705, 8553, 11115, 14255, 25659, 37063, 42765, 54169, 111189, 128295, 162507, 185315, 270845, 333567, 487521, 555945, 704197, 812535, 1667835, 2112591, 2437605, 3520985, 6337773, 10562955, 31688865]

約数ペア:

[(1, 31688865), (3, 10562955), (5, 6337773), (9, 3520985), (13, 2437605), (15, 2112591), (19, 1667835), (39, 812535), (45, 704197), (57, 555945), (65, 487521), (95, 333567), (117, 270845), (171, 185315), (195, 162507), (247, 128295), (285, 111189), (585, 54169), (741, 42765), (855, 37063), (1235, 25659), (2223, 14255), (2851, 11115), (3705, 8553)]