819204080

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{32303}}^1$

素因数の和:32633

約数の個数: 40

約数和(自身を含む): 1910716992

約数和(自身を除く): 1091512912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 1268, 1585, 2536, 3170, 5072, 6340, 12680, 25360, 32303, 64606, 129212, 161515, 258424, 323030, 516848, 646060, 1292120, 2584240, 10240051, 20480102, 40960204, 51200255, 81920408, 102400510, 163840816, 204801020, 409602040, 819204080]

約数ペア:

[(1, 819204080), (2, 409602040), (4, 204801020), (5, 163840816), (8, 102400510), (10, 81920408), (16, 51200255), (20, 40960204), (40, 20480102), (80, 10240051), (317, 2584240), (634, 1292120), (1268, 646060), (1585, 516848), (2536, 323030), (3170, 258424), (5072, 161515), (6340, 129212), (12680, 64606), (25360, 32303)]