128758280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{367}}^1$

素因数の和:571

約数の個数: 96

約数和(自身を含む): 339811200

約数和(自身を除く): 211052920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 179, 196, 245, 280, 358, 367, 392, 490, 716, 734, 895, 980, 1253, 1432, 1468, 1790, 1835, 1960, 2506, 2569, 2936, 3580, 3670, 5012, 5138, 6265, 7160, 7340, 8771, 10024, 10276, 12530, 12845, 14680, 17542, 17983, 20552, 25060, 25690, 35084, 35966, 43855, 50120, 51380, 65693, 70168, 71932, 87710, 89915, 102760, 131386, 143864, 175420, 179830, 262772, 328465, 350840, 359660, 459851, 525544, 656930, 719320, 919702, 1313860, 1839404, 2299255, 2627720, 3218957, 3678808, 4598510, 6437914, 9197020, 12875828, 16094785, 18394040, 25751656, 32189570, 64379140, 128758280]

約数ペア:

[(1, 128758280), (2, 64379140), (4, 32189570), (5, 25751656), (7, 18394040), (8, 16094785), (10, 12875828), (14, 9197020), (20, 6437914), (28, 4598510), (35, 3678808), (40, 3218957), (49, 2627720), (56, 2299255), (70, 1839404), (98, 1313860), (140, 919702), (179, 719320), (196, 656930), (245, 525544), (280, 459851), (358, 359660), (367, 350840), (392, 328465), (490, 262772), (716, 179830), (734, 175420), (895, 143864), (980, 131386), (1253, 102760), (1432, 89915), (1468, 87710), (1790, 71932), (1835, 70168), (1960, 65693), (2506, 51380), (2569, 50120), (2936, 43855), (3580, 35966), (3670, 35084), (5012, 25690), (5138, 25060), (6265, 20552), (7160, 17983), (7340, 17542), (8771, 14680), (10024, 12845), (10276, 12530)]