68239280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 164989440

約数和(自身を除く): 96750160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 83, 86, 166, 172, 215, 239, 332, 344, 415, 430, 478, 664, 688, 830, 860, 956, 1195, 1328, 1660, 1720, 1912, 2390, 3320, 3440, 3569, 3824, 4780, 6640, 7138, 9560, 10277, 14276, 17845, 19120, 19837, 20554, 28552, 35690, 39674, 41108, 51385, 57104, 71380, 79348, 82216, 99185, 102770, 142760, 158696, 164432, 198370, 205540, 285520, 317392, 396740, 411080, 793480, 822160, 852991, 1586960, 1705982, 3411964, 4264955, 6823928, 8529910, 13647856, 17059820, 34119640, 68239280]

約数ペア:

[(1, 68239280), (2, 34119640), (4, 17059820), (5, 13647856), (8, 8529910), (10, 6823928), (16, 4264955), (20, 3411964), (40, 1705982), (43, 1586960), (80, 852991), (83, 822160), (86, 793480), (166, 411080), (172, 396740), (215, 317392), (239, 285520), (332, 205540), (344, 198370), (415, 164432), (430, 158696), (478, 142760), (664, 102770), (688, 99185), (830, 82216), (860, 79348), (956, 71380), (1195, 57104), (1328, 51385), (1660, 41108), (1720, 39674), (1912, 35690), (2390, 28552), (3320, 20554), (3440, 19837), (3569, 19120), (3824, 17845), (4780, 14276), (6640, 10277), (7138, 9560)]