81385990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{10289}}^1$

素因数の和:10416

約数の個数: 32

約数和(自身を含む): 168920640

約数和(自身を除く): 87534650

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 113, 226, 565, 791, 1130, 1582, 3955, 7910, 10289, 20578, 51445, 72023, 102890, 144046, 360115, 720230, 1162657, 2325314, 5813285, 8138599, 11626570, 16277198, 40692995, 81385990]

約数ペア:

[(1, 81385990), (2, 40692995), (5, 16277198), (7, 11626570), (10, 8138599), (14, 5813285), (35, 2325314), (70, 1162657), (113, 720230), (226, 360115), (565, 144046), (791, 102890), (1130, 72023), (1582, 51445), (3955, 20578), (7910, 10289)]