8881990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4019}}^1$

素因数の和:4056

約数の個数: 32

約数和(自身を含む): 18234720

約数和(自身を除く): 9352730

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 4019, 8038, 20095, 40190, 52247, 68323, 104494, 136646, 261235, 341615, 522470, 683230, 888199, 1776398, 4440995, 8881990]

約数ペア:

[(1, 8881990), (2, 4440995), (5, 1776398), (10, 888199), (13, 683230), (17, 522470), (26, 341615), (34, 261235), (65, 136646), (85, 104494), (130, 68323), (170, 52247), (221, 40190), (442, 20095), (1105, 8038), (2210, 4019)]