388645985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{7559}}^1$

素因数の和:7697

約数の個数: 32

約数和(自身を含む): 579156480

約数和(自身を除く): 190510495

約数列:

[1, 5, 7, 13, 35, 65, 91, 113, 455, 565, 791, 1469, 3955, 7345, 7559, 10283, 37795, 51415, 52913, 98267, 264565, 491335, 687869, 854167, 3439345, 4270835, 5979169, 11104171, 29895845, 55520855, 77729197, 388645985]

約数ペア:

[(1, 388645985), (5, 77729197), (7, 55520855), (13, 29895845), (35, 11104171), (65, 5979169), (91, 4270835), (113, 3439345), (455, 854167), (565, 687869), (791, 491335), (1469, 264565), (3955, 98267), (7345, 52913), (7559, 51415), (10283, 37795)]