20379560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9613}}^1$

素因数の和:9677

約数の個数: 32

約数和(自身を含む): 46724040

約数和(自身を除く): 26344480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9613, 19226, 38452, 48065, 76904, 96130, 192260, 384520, 509489, 1018978, 2037956, 2547445, 4075912, 5094890, 10189780, 20379560]

約数ペア:

[(1, 20379560), (2, 10189780), (4, 5094890), (5, 4075912), (8, 2547445), (10, 2037956), (20, 1018978), (40, 509489), (53, 384520), (106, 192260), (212, 96130), (265, 76904), (424, 48065), (530, 38452), (1060, 19226), (2120, 9613)]