19493920

素因数分解:

$2^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1669}}^1$

素因数の和:1757

約数の個数: 48

約数和(自身を含む): 46713240

約数和(自身を除く): 27219320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 73, 80, 146, 160, 292, 365, 584, 730, 1168, 1460, 1669, 2336, 2920, 3338, 5840, 6676, 8345, 11680, 13352, 16690, 26704, 33380, 53408, 66760, 121837, 133520, 243674, 267040, 487348, 609185, 974696, 1218370, 1949392, 2436740, 3898784, 4873480, 9746960, 19493920]

約数ペア:

[(1, 19493920), (2, 9746960), (4, 4873480), (5, 3898784), (8, 2436740), (10, 1949392), (16, 1218370), (20, 974696), (32, 609185), (40, 487348), (73, 267040), (80, 243674), (146, 133520), (160, 121837), (292, 66760), (365, 53408), (584, 33380), (730, 26704), (1168, 16690), (1460, 13352), (1669, 11680), (2336, 8345), (2920, 6676), (3338, 5840)]