1785290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 3580416

約数和(自身を除く): 1795126

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 443, 806, 886, 2015, 2215, 4030, 4430, 5759, 11518, 13733, 27466, 28795, 57590, 68665, 137330, 178529, 357058, 892645, 1785290]

約数ペア:

[(1, 1785290), (2, 892645), (5, 357058), (10, 178529), (13, 137330), (26, 68665), (31, 57590), (62, 28795), (65, 27466), (130, 13733), (155, 11518), (310, 5759), (403, 4430), (443, 4030), (806, 2215), (886, 2015)]