31451728

素因数分解:

$2^4\times 7^3\times {\mathrm{11}}^1\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 80

約数和(自身を含む): 77673600

約数和(自身を除く): 46221872

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 308, 343, 392, 521, 539, 616, 686, 784, 1042, 1078, 1232, 1372, 2084, 2156, 2744, 3647, 3773, 4168, 4312, 5488, 5731, 7294, 7546, 8336, 8624, 11462, 14588, 15092, 22924, 25529, 29176, 30184, 40117, 45848, 51058, 58352, 60368, 80234, 91696, 102116, 160468, 178703, 204232, 280819, 320936, 357406, 408464, 561638, 641872, 714812, 1123276, 1429624, 1965733, 2246552, 2859248, 3931466, 4493104, 7862932, 15725864, 31451728]

約数ペア:

[(1, 31451728), (2, 15725864), (4, 7862932), (7, 4493104), (8, 3931466), (11, 2859248), (14, 2246552), (16, 1965733), (22, 1429624), (28, 1123276), (44, 714812), (49, 641872), (56, 561638), (77, 408464), (88, 357406), (98, 320936), (112, 280819), (154, 204232), (176, 178703), (196, 160468), (308, 102116), (343, 91696), (392, 80234), (521, 60368), (539, 58352), (616, 51058), (686, 45848), (784, 40117), (1042, 30184), (1078, 29176), (1232, 25529), (1372, 22924), (2084, 15092), (2156, 14588), (2744, 11462), (3647, 8624), (3773, 8336), (4168, 7546), (4312, 7294), (5488, 5731)]