389435145

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{787}}^1\times {\mathrm{2999}}^1$

素因数の和:3805

約数の個数: 32

約数和(自身を含む): 680832000

約数和(自身を除く): 291396855

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 787, 2361, 2999, 3935, 8657, 8997, 11805, 14995, 25971, 32989, 43285, 44985, 98967, 129855, 164945, 494835, 2360213, 7080639, 11801065, 25962343, 35403195, 77887029, 129811715, 389435145]

約数ペア:

[(1, 389435145), (3, 129811715), (5, 77887029), (11, 35403195), (15, 25962343), (33, 11801065), (55, 7080639), (165, 2360213), (787, 494835), (2361, 164945), (2999, 129855), (3935, 98967), (8657, 44985), (8997, 43285), (11805, 32989), (14995, 25971)]