57140120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 133056000

約数和(自身を除く): 75915880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 139, 172, 215, 239, 278, 344, 430, 478, 556, 695, 860, 956, 1112, 1195, 1390, 1720, 1912, 2390, 2780, 4780, 5560, 5977, 9560, 10277, 11954, 20554, 23908, 29885, 33221, 41108, 47816, 51385, 59770, 66442, 82216, 102770, 119540, 132884, 166105, 205540, 239080, 265768, 332210, 411080, 664420, 1328840, 1428503, 2857006, 5714012, 7142515, 11428024, 14285030, 28570060, 57140120]

約数ペア:

[(1, 57140120), (2, 28570060), (4, 14285030), (5, 11428024), (8, 7142515), (10, 5714012), (20, 2857006), (40, 1428503), (43, 1328840), (86, 664420), (139, 411080), (172, 332210), (215, 265768), (239, 239080), (278, 205540), (344, 166105), (430, 132884), (478, 119540), (556, 102770), (695, 82216), (860, 66442), (956, 59770), (1112, 51385), (1195, 47816), (1390, 41108), (1720, 33221), (1912, 29885), (2390, 23908), (2780, 20554), (4780, 11954), (5560, 10277), (5977, 9560)]