51027860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:553

約数の個数: 72

約数和(自身を含む): 120024576

約数和(自身を除く): 68996716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 487, 620, 676, 806, 845, 974, 1612, 1690, 1948, 2015, 2435, 3380, 4030, 4870, 5239, 6331, 8060, 9740, 10478, 12662, 15097, 20956, 25324, 26195, 30194, 31655, 52390, 60388, 63310, 75485, 82303, 104780, 126620, 150970, 164606, 196261, 301940, 329212, 392522, 411515, 785044, 823030, 981305, 1646060, 1962610, 2551393, 3925220, 5102786, 10205572, 12756965, 25513930, 51027860]

約数ペア:

[(1, 51027860), (2, 25513930), (4, 12756965), (5, 10205572), (10, 5102786), (13, 3925220), (20, 2551393), (26, 1962610), (31, 1646060), (52, 981305), (62, 823030), (65, 785044), (124, 411515), (130, 392522), (155, 329212), (169, 301940), (260, 196261), (310, 164606), (338, 150970), (403, 126620), (487, 104780), (620, 82303), (676, 75485), (806, 63310), (845, 60388), (974, 52390), (1612, 31655), (1690, 30194), (1948, 26195), (2015, 25324), (2435, 20956), (3380, 15097), (4030, 12662), (4870, 10478), (5239, 9740), (6331, 8060)]