420871295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{380879}}^1$

素因数の和:380914

約数の個数: 16

約数和(自身を含む): 575890560

約数和(自身を除く): 155019265

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 380879, 1904395, 4951427, 6474943, 24757135, 32374715, 84174259, 420871295]

約数ペア:

[(1, 420871295), (5, 84174259), (13, 32374715), (17, 24757135), (65, 6474943), (85, 4951427), (221, 1904395), (1105, 380879)]