18834580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 22259564

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 103, 164, 205, 206, 223, 410, 412, 446, 515, 820, 892, 1030, 1115, 2060, 2230, 4223, 4460, 8446, 9143, 16892, 18286, 21115, 22969, 36572, 42230, 45715, 45938, 84460, 91430, 91876, 114845, 182860, 229690, 459380, 941729, 1883458, 3766916, 4708645, 9417290, 18834580]

約数ペア:

[(1, 18834580), (2, 9417290), (4, 4708645), (5, 3766916), (10, 1883458), (20, 941729), (41, 459380), (82, 229690), (103, 182860), (164, 114845), (205, 91876), (206, 91430), (223, 84460), (410, 45938), (412, 45715), (446, 42230), (515, 36572), (820, 22969), (892, 21115), (1030, 18286), (1115, 16892), (2060, 9143), (2230, 8446), (4223, 4460)]