19132220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12109}}^1$

素因数の和:12197

約数の個数: 24

約数和(自身を含む): 40689600

約数和(自身を除く): 21557380

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12109, 24218, 48436, 60545, 121090, 242180, 956611, 1913222, 3826444, 4783055, 9566110, 19132220]

約数ペア:

[(1, 19132220), (2, 9566110), (4, 4783055), (5, 3826444), (10, 1913222), (20, 956611), (79, 242180), (158, 121090), (316, 60545), (395, 48436), (790, 24218), (1580, 12109)]