199423480

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{18397}}^1$

素因数の和:18679

約数の個数: 32

約数和(自身を含む): 450383040

約数和(自身を除く): 250959560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 18397, 36794, 73588, 91985, 147176, 183970, 367940, 735880, 4985587, 9971174, 19942348, 24927935, 39884696, 49855870, 99711740, 199423480]

約数ペア:

[(1, 199423480), (2, 99711740), (4, 49855870), (5, 39884696), (8, 24927935), (10, 19942348), (20, 9971174), (40, 4985587), (271, 735880), (542, 367940), (1084, 183970), (1355, 147176), (2168, 91985), (2710, 73588), (5420, 36794), (10840, 18397)]