19943140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{853}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 48206592

約数和(自身を除く): 28263452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 167, 334, 668, 835, 853, 1169, 1670, 1706, 2338, 3340, 3412, 4265, 4676, 5845, 5971, 8530, 11690, 11942, 17060, 23380, 23884, 29855, 59710, 119420, 142451, 284902, 569804, 712255, 997157, 1424510, 1994314, 2849020, 3988628, 4985785, 9971570, 19943140]

約数ペア:

[(1, 19943140), (2, 9971570), (4, 4985785), (5, 3988628), (7, 2849020), (10, 1994314), (14, 1424510), (20, 997157), (28, 712255), (35, 569804), (70, 284902), (140, 142451), (167, 119420), (334, 59710), (668, 29855), (835, 23884), (853, 23380), (1169, 17060), (1670, 11942), (1706, 11690), (2338, 8530), (3340, 5971), (3412, 5845), (4265, 4676)]