77680540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5387}}^1$

素因数の和:5506

約数の個数: 48

約数和(自身を含む): 188278272

約数和(自身を除く): 110597732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 5387, 7210, 10774, 14420, 21548, 26935, 37709, 53870, 75418, 107740, 150836, 188545, 377090, 554861, 754180, 1109722, 2219444, 2774305, 3884027, 5548610, 7768054, 11097220, 15536108, 19420135, 38840270, 77680540]

約数ペア:

[(1, 77680540), (2, 38840270), (4, 19420135), (5, 15536108), (7, 11097220), (10, 7768054), (14, 5548610), (20, 3884027), (28, 2774305), (35, 2219444), (70, 1109722), (103, 754180), (140, 554861), (206, 377090), (412, 188545), (515, 150836), (721, 107740), (1030, 75418), (1442, 53870), (2060, 37709), (2884, 26935), (3605, 21548), (5387, 14420), (7210, 10774)]