78359660

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 168279552

約数和(自身を除く): 89919892

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 191, 281, 292, 365, 382, 562, 730, 764, 955, 1124, 1405, 1460, 1910, 2810, 3820, 5620, 13943, 20513, 27886, 41026, 53671, 55772, 69715, 82052, 102565, 107342, 139430, 205130, 214684, 268355, 278860, 410260, 536710, 1073420, 3917983, 7835966, 15671932, 19589915, 39179830, 78359660]

約数ペア:

[(1, 78359660), (2, 39179830), (4, 19589915), (5, 15671932), (10, 7835966), (20, 3917983), (73, 1073420), (146, 536710), (191, 410260), (281, 278860), (292, 268355), (365, 214684), (382, 205130), (562, 139430), (730, 107342), (764, 102565), (955, 82052), (1124, 69715), (1405, 55772), (1460, 53671), (1910, 41026), (2810, 27886), (3820, 20513), (5620, 13943)]