28140816

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 79994880

約数和(自身を除く): 51854064

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 223, 239, 264, 446, 478, 528, 669, 717, 892, 956, 1338, 1434, 1784, 1912, 2453, 2629, 2676, 2868, 3568, 3824, 4906, 5258, 5352, 5736, 7359, 7887, 9812, 10516, 10704, 11472, 14718, 15774, 19624, 21032, 29436, 31548, 39248, 42064, 53297, 58872, 63096, 106594, 117744, 126192, 159891, 213188, 319782, 426376, 586267, 639564, 852752, 1172534, 1279128, 1758801, 2345068, 2558256, 3517602, 4690136, 7035204, 9380272, 14070408, 28140816]

約数ペア:

[(1, 28140816), (2, 14070408), (3, 9380272), (4, 7035204), (6, 4690136), (8, 3517602), (11, 2558256), (12, 2345068), (16, 1758801), (22, 1279128), (24, 1172534), (33, 852752), (44, 639564), (48, 586267), (66, 426376), (88, 319782), (132, 213188), (176, 159891), (223, 126192), (239, 117744), (264, 106594), (446, 63096), (478, 58872), (528, 53297), (669, 42064), (717, 39248), (892, 31548), (956, 29436), (1338, 21032), (1434, 19624), (1784, 15774), (1912, 14718), (2453, 11472), (2629, 10704), (2676, 10516), (2868, 9812), (3568, 7887), (3824, 7359), (4906, 5736), (5258, 5352)]