19894360

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2081}}^1$

素因数の和:2331

約数の個数: 32

約数和(自身を含む): 44971200

約数和(自身を除く): 25076840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2081, 2390, 4162, 4780, 8324, 9560, 10405, 16648, 20810, 41620, 83240, 497359, 994718, 1989436, 2486795, 3978872, 4973590, 9947180, 19894360]

約数ペア:

[(1, 19894360), (2, 9947180), (4, 4973590), (5, 3978872), (8, 2486795), (10, 1989436), (20, 994718), (40, 497359), (239, 83240), (478, 41620), (956, 20810), (1195, 16648), (1912, 10405), (2081, 9560), (2390, 8324), (4162, 4780)]