28457640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{577}}^1$

素因数の和:731

約数の個数: 96

約数和(自身を含む): 93323880

約数和(自身を除く): 64866240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 137, 180, 274, 360, 411, 548, 577, 685, 822, 1096, 1154, 1233, 1370, 1644, 1731, 2055, 2308, 2466, 2740, 2885, 3288, 3462, 4110, 4616, 4932, 5193, 5480, 5770, 6165, 6924, 8220, 8655, 9864, 10386, 11540, 12330, 13848, 16440, 17310, 20772, 23080, 24660, 25965, 34620, 41544, 49320, 51930, 69240, 79049, 103860, 158098, 207720, 237147, 316196, 395245, 474294, 632392, 711441, 790490, 948588, 1185735, 1422882, 1580980, 1897176, 2371470, 2845764, 3161960, 3557205, 4742940, 5691528, 7114410, 9485880, 14228820, 28457640]

約数ペア:

[(1, 28457640), (2, 14228820), (3, 9485880), (4, 7114410), (5, 5691528), (6, 4742940), (8, 3557205), (9, 3161960), (10, 2845764), (12, 2371470), (15, 1897176), (18, 1580980), (20, 1422882), (24, 1185735), (30, 948588), (36, 790490), (40, 711441), (45, 632392), (60, 474294), (72, 395245), (90, 316196), (120, 237147), (137, 207720), (180, 158098), (274, 103860), (360, 79049), (411, 69240), (548, 51930), (577, 49320), (685, 41544), (822, 34620), (1096, 25965), (1154, 24660), (1233, 23080), (1370, 20772), (1644, 17310), (1731, 16440), (2055, 13848), (2308, 12330), (2466, 11540), (2740, 10386), (2885, 9864), (3288, 8655), (3462, 8220), (4110, 6924), (4616, 6165), (4932, 5770), (5193, 5480)]