640482512176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4441}}^1\times {\mathrm{36493}}^1$

素因数の和:40974

約数の個数: 80

約数和(自身を含む): 1407083100640

約数和(自身を除く): 766600588464

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 4441, 8882, 17764, 35528, 36493, 57733, 71056, 72986, 84379, 115466, 145972, 168758, 230932, 291944, 337516, 461864, 474409, 583888, 675032, 693367, 923728, 948818, 1096927, 1350064, 1386734, 1897636, 2193854, 2773468, 3795272, 4387708, 5546936, 7590544, 8775416, 9013771, 11093872, 17550832, 18027542, 36055084, 72110168, 144220336, 162065413, 324130826, 648261652, 1296523304, 2106850369, 2593046608, 3079242847, 4213700738, 6158485694, 8427401476, 12316971388, 16854802952, 24633942776, 33709605904, 40030157011, 49267885552, 80060314022, 160120628044, 320241256088, 640482512176]

約数ペア:

[(1, 640482512176), (2, 320241256088), (4, 160120628044), (8, 80060314022), (13, 49267885552), (16, 40030157011), (19, 33709605904), (26, 24633942776), (38, 16854802952), (52, 12316971388), (76, 8427401476), (104, 6158485694), (152, 4213700738), (208, 3079242847), (247, 2593046608), (304, 2106850369), (494, 1296523304), (988, 648261652), (1976, 324130826), (3952, 162065413), (4441, 144220336), (8882, 72110168), (17764, 36055084), (35528, 18027542), (36493, 17550832), (57733, 11093872), (71056, 9013771), (72986, 8775416), (84379, 7590544), (115466, 5546936), (145972, 4387708), (168758, 3795272), (230932, 2773468), (291944, 2193854), (337516, 1897636), (461864, 1386734), (474409, 1350064), (583888, 1096927), (675032, 948818), (693367, 923728)]