639478416

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1\times {\mathrm{1171}}^1$

素因数の和:1580

約数の個数: 80

約数和(自身を含む): 1711382528

約数和(自身を除く): 1071904112

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 248, 367, 372, 496, 734, 744, 1101, 1171, 1468, 1488, 2202, 2342, 2936, 3513, 4404, 4684, 5872, 7026, 8808, 9368, 11377, 14052, 17616, 18736, 22754, 28104, 34131, 36301, 45508, 56208, 68262, 72602, 91016, 108903, 136524, 145204, 182032, 217806, 273048, 290408, 429757, 435612, 546096, 580816, 859514, 871224, 1289271, 1719028, 1742448, 2578542, 3438056, 5157084, 6876112, 10314168, 13322467, 20628336, 26644934, 39967401, 53289868, 79934802, 106579736, 159869604, 213159472, 319739208, 639478416]

約数ペア:

[(1, 639478416), (2, 319739208), (3, 213159472), (4, 159869604), (6, 106579736), (8, 79934802), (12, 53289868), (16, 39967401), (24, 26644934), (31, 20628336), (48, 13322467), (62, 10314168), (93, 6876112), (124, 5157084), (186, 3438056), (248, 2578542), (367, 1742448), (372, 1719028), (496, 1289271), (734, 871224), (744, 859514), (1101, 580816), (1171, 546096), (1468, 435612), (1488, 429757), (2202, 290408), (2342, 273048), (2936, 217806), (3513, 182032), (4404, 145204), (4684, 136524), (5872, 108903), (7026, 91016), (8808, 72602), (9368, 68262), (11377, 56208), (14052, 45508), (17616, 36301), (18736, 34131), (22754, 28104)]