28658640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2777}}^1$

素因数の和:2836

約数の個数: 80

約数和(自身を含む): 90940608

約数和(自身を除く): 62281968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 2777, 3440, 5160, 5554, 8331, 10320, 11108, 13885, 16662, 22216, 27770, 33324, 41655, 44432, 55540, 66648, 83310, 111080, 119411, 133296, 166620, 222160, 238822, 333240, 358233, 477644, 597055, 666480, 716466, 955288, 1194110, 1432932, 1791165, 1910576, 2388220, 2865864, 3582330, 4776440, 5731728, 7164660, 9552880, 14329320, 28658640]

約数ペア:

[(1, 28658640), (2, 14329320), (3, 9552880), (4, 7164660), (5, 5731728), (6, 4776440), (8, 3582330), (10, 2865864), (12, 2388220), (15, 1910576), (16, 1791165), (20, 1432932), (24, 1194110), (30, 955288), (40, 716466), (43, 666480), (48, 597055), (60, 477644), (80, 358233), (86, 333240), (120, 238822), (129, 222160), (172, 166620), (215, 133296), (240, 119411), (258, 111080), (344, 83310), (430, 66648), (516, 55540), (645, 44432), (688, 41655), (860, 33324), (1032, 27770), (1290, 22216), (1720, 16662), (2064, 13885), (2580, 11108), (2777, 10320), (3440, 8331), (5160, 5554)]