18677640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{491}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 56324160

約数和(自身を除く): 37646520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 317, 491, 634, 951, 982, 1268, 1473, 1585, 1902, 1964, 2455, 2536, 2946, 3170, 3804, 3928, 4755, 4910, 5892, 6340, 7365, 7608, 9510, 9820, 11784, 12680, 14730, 19020, 19640, 29460, 38040, 58920, 155647, 311294, 466941, 622588, 778235, 933882, 1245176, 1556470, 1867764, 2334705, 3112940, 3735528, 4669410, 6225880, 9338820, 18677640]

約数ペア:

[(1, 18677640), (2, 9338820), (3, 6225880), (4, 4669410), (5, 3735528), (6, 3112940), (8, 2334705), (10, 1867764), (12, 1556470), (15, 1245176), (20, 933882), (24, 778235), (30, 622588), (40, 466941), (60, 311294), (120, 155647), (317, 58920), (491, 38040), (634, 29460), (951, 19640), (982, 19020), (1268, 14730), (1473, 12680), (1585, 11784), (1902, 9820), (1964, 9510), (2455, 7608), (2536, 7365), (2946, 6340), (3170, 5892), (3804, 4910), (3928, 4755)]