61491640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{219613}}^1$

素因数の和:219631

約数の個数: 32

約数和(自身を含む): 158122080

約数和(自身を除く): 96630440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 219613, 439226, 878452, 1098065, 1537291, 1756904, 2196130, 3074582, 4392260, 6149164, 7686455, 8784520, 12298328, 15372910, 30745820, 61491640]

約数ペア:

[(1, 61491640), (2, 30745820), (4, 15372910), (5, 12298328), (7, 8784520), (8, 7686455), (10, 6149164), (14, 4392260), (20, 3074582), (28, 2196130), (35, 1756904), (40, 1537291), (56, 1098065), (70, 878452), (140, 439226), (280, 219613)]