31870280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{367}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 77898240

約数和(自身を除く): 46027960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 167, 260, 334, 367, 520, 668, 734, 835, 1336, 1468, 1670, 1835, 2171, 2936, 3340, 3670, 4342, 4771, 6680, 7340, 8684, 9542, 10855, 14680, 17368, 19084, 21710, 23855, 38168, 43420, 47710, 61289, 86840, 95420, 122578, 190840, 245156, 306445, 490312, 612890, 796757, 1225780, 1593514, 2451560, 3187028, 3983785, 6374056, 7967570, 15935140, 31870280]

約数ペア:

[(1, 31870280), (2, 15935140), (4, 7967570), (5, 6374056), (8, 3983785), (10, 3187028), (13, 2451560), (20, 1593514), (26, 1225780), (40, 796757), (52, 612890), (65, 490312), (104, 306445), (130, 245156), (167, 190840), (260, 122578), (334, 95420), (367, 86840), (520, 61289), (668, 47710), (734, 43420), (835, 38168), (1336, 23855), (1468, 21710), (1670, 19084), (1835, 17368), (2171, 14680), (2936, 10855), (3340, 9542), (3670, 8684), (4342, 7340), (4771, 6680)]