19734820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1931}}^1$

素因数の和:2020

約数の個数: 48

約数和(自身を含む): 48037248

約数和(自身を除く): 28302428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 1931, 2044, 2555, 3862, 5110, 7724, 9655, 10220, 13517, 19310, 27034, 38620, 54068, 67585, 135170, 140963, 270340, 281926, 563852, 704815, 986741, 1409630, 1973482, 2819260, 3946964, 4933705, 9867410, 19734820]

約数ペア:

[(1, 19734820), (2, 9867410), (4, 4933705), (5, 3946964), (7, 2819260), (10, 1973482), (14, 1409630), (20, 986741), (28, 704815), (35, 563852), (70, 281926), (73, 270340), (140, 140963), (146, 135170), (292, 67585), (365, 54068), (511, 38620), (730, 27034), (1022, 19310), (1460, 13517), (1931, 10220), (2044, 9655), (2555, 7724), (3862, 5110)]