199333880

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{17609}}^1$

素因数の和:17903

約数の個数: 32

約数和(自身を含む): 450111600

約数和(自身を除く): 250777720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 17609, 35218, 70436, 88045, 140872, 176090, 352180, 704360, 4983347, 9966694, 19933388, 24916735, 39866776, 49833470, 99666940, 199333880]

約数ペア:

[(1, 199333880), (2, 99666940), (4, 49833470), (5, 39866776), (8, 24916735), (10, 19933388), (20, 9966694), (40, 4983347), (283, 704360), (566, 352180), (1132, 176090), (1415, 140872), (2264, 88045), (2830, 70436), (5660, 35218), (11320, 17609)]