81999536

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{49757}}^1$

素因数の和:49868

約数の個数: 20

約数和(自身を含む): 160419792

約数和(自身を除く): 78420256

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 49757, 99514, 199028, 398056, 796112, 5124971, 10249942, 20499884, 40999768, 81999536]

約数ペア:

[(1, 81999536), (2, 40999768), (4, 20499884), (8, 10249942), (16, 5124971), (103, 796112), (206, 398056), (412, 199028), (824, 99514), (1648, 49757)]