21140040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1559}}^1$

素因数の和:1686

約数の個数: 64

約数和(自身を含む): 64022400

約数和(自身を除く): 42882360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 113, 120, 226, 339, 452, 565, 678, 904, 1130, 1356, 1559, 1695, 2260, 2712, 3118, 3390, 4520, 4677, 6236, 6780, 7795, 9354, 12472, 13560, 15590, 18708, 23385, 31180, 37416, 46770, 62360, 93540, 176167, 187080, 352334, 528501, 704668, 880835, 1057002, 1409336, 1761670, 2114004, 2642505, 3523340, 4228008, 5285010, 7046680, 10570020, 21140040]

約数ペア:

[(1, 21140040), (2, 10570020), (3, 7046680), (4, 5285010), (5, 4228008), (6, 3523340), (8, 2642505), (10, 2114004), (12, 1761670), (15, 1409336), (20, 1057002), (24, 880835), (30, 704668), (40, 528501), (60, 352334), (113, 187080), (120, 176167), (226, 93540), (339, 62360), (452, 46770), (565, 37416), (678, 31180), (904, 23385), (1130, 18708), (1356, 15590), (1559, 13560), (1695, 12472), (2260, 9354), (2712, 7795), (3118, 6780), (3390, 6236), (4520, 4677)]