261520336

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2687}}^1$

素因数の和:2792

約数の個数: 80

約数和(自身を含む): 639959040

約数和(自身を除く): 378438704

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 79, 88, 112, 154, 158, 176, 308, 316, 553, 616, 632, 869, 1106, 1232, 1264, 1738, 2212, 2687, 3476, 4424, 5374, 6083, 6952, 8848, 10748, 12166, 13904, 18809, 21496, 24332, 29557, 37618, 42992, 48664, 59114, 75236, 97328, 118228, 150472, 206899, 212273, 236456, 300944, 413798, 424546, 472912, 827596, 849092, 1485911, 1655192, 1698184, 2335003, 2971822, 3310384, 3396368, 4670006, 5943644, 9340012, 11887288, 16345021, 18680024, 23774576, 32690042, 37360048, 65380084, 130760168, 261520336]

約数ペア:

[(1, 261520336), (2, 130760168), (4, 65380084), (7, 37360048), (8, 32690042), (11, 23774576), (14, 18680024), (16, 16345021), (22, 11887288), (28, 9340012), (44, 5943644), (56, 4670006), (77, 3396368), (79, 3310384), (88, 2971822), (112, 2335003), (154, 1698184), (158, 1655192), (176, 1485911), (308, 849092), (316, 827596), (553, 472912), (616, 424546), (632, 413798), (869, 300944), (1106, 236456), (1232, 212273), (1264, 206899), (1738, 150472), (2212, 118228), (2687, 97328), (3476, 75236), (4424, 59114), (5374, 48664), (6083, 42992), (6952, 37618), (8848, 29557), (10748, 24332), (12166, 21496), (13904, 18809)]