16638860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{757}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 40240704

約数和(自身を除く): 23601844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 757, 785, 1099, 1514, 1570, 2198, 3028, 3140, 3785, 4396, 5299, 5495, 7570, 10598, 10990, 15140, 21196, 21980, 26495, 52990, 105980, 118849, 237698, 475396, 594245, 831943, 1188490, 1663886, 2376980, 3327772, 4159715, 8319430, 16638860]

約数ペア:

[(1, 16638860), (2, 8319430), (4, 4159715), (5, 3327772), (7, 2376980), (10, 1663886), (14, 1188490), (20, 831943), (28, 594245), (35, 475396), (70, 237698), (140, 118849), (157, 105980), (314, 52990), (628, 26495), (757, 21980), (785, 21196), (1099, 15140), (1514, 10990), (1570, 10598), (2198, 7570), (3028, 5495), (3140, 5299), (3785, 4396)]