19537720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6691}}^1$

素因数の和:6775

約数の個数: 32

約数和(自身を含む): 44568720

約数和(自身を除く): 25031000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6691, 13382, 26764, 33455, 53528, 66910, 133820, 267640, 488443, 976886, 1953772, 2442215, 3907544, 4884430, 9768860, 19537720]

約数ペア:

[(1, 19537720), (2, 9768860), (4, 4884430), (5, 3907544), (8, 2442215), (10, 1953772), (20, 976886), (40, 488443), (73, 267640), (146, 133820), (292, 66910), (365, 53528), (584, 33455), (730, 26764), (1460, 13382), (2920, 6691)]