78098540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2161}}^1$

素因数の和:2322

約数の個数: 48

約数和(自身を含む): 177975840

約数和(自身を除く): 99877300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2161, 2780, 3614, 4322, 7228, 8644, 9035, 10805, 18070, 21610, 28093, 36140, 43220, 56186, 112372, 140465, 280930, 300379, 561860, 600758, 1201516, 1501895, 3003790, 3904927, 6007580, 7809854, 15619708, 19524635, 39049270, 78098540]

約数ペア:

[(1, 78098540), (2, 39049270), (4, 19524635), (5, 15619708), (10, 7809854), (13, 6007580), (20, 3904927), (26, 3003790), (52, 1501895), (65, 1201516), (130, 600758), (139, 561860), (260, 300379), (278, 280930), (556, 140465), (695, 112372), (1390, 56186), (1807, 43220), (2161, 36140), (2780, 28093), (3614, 21610), (4322, 18070), (7228, 10805), (8644, 9035)]