101638360

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{9887}}^1$

素因数の和:10155

約数の個数: 32

約数和(自身を含む): 229599360

約数和(自身を除く): 127961000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 9887, 10280, 19774, 39548, 49435, 79096, 98870, 197740, 395480, 2540959, 5081918, 10163836, 12704795, 20327672, 25409590, 50819180, 101638360]

約数ペア:

[(1, 101638360), (2, 50819180), (4, 25409590), (5, 20327672), (8, 12704795), (10, 10163836), (20, 5081918), (40, 2540959), (257, 395480), (514, 197740), (1028, 98870), (1285, 79096), (2056, 49435), (2570, 39548), (5140, 19774), (9887, 10280)]