42499720

素因数分解:

$2^3\times 5^1\times {\mathrm{823}}^1\times {\mathrm{1291}}^1$

素因数の和:2125

約数の個数: 32

約数和(自身を含む): 95814720

約数和(自身を除く): 53315000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 823, 1291, 1646, 2582, 3292, 4115, 5164, 6455, 6584, 8230, 10328, 12910, 16460, 25820, 32920, 51640, 1062493, 2124986, 4249972, 5312465, 8499944, 10624930, 21249860, 42499720]

約数ペア:

[(1, 42499720), (2, 21249860), (4, 10624930), (5, 8499944), (8, 5312465), (10, 4249972), (20, 2124986), (40, 1062493), (823, 51640), (1291, 32920), (1646, 25820), (2582, 16460), (3292, 12910), (4115, 10328), (5164, 8230), (6455, 6584)]