65403280

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2663}}^1$

素因数の和:2983

約数の個数: 40

約数和(自身を含む): 152615232

約数和(自身を除く): 87211952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 1228, 1535, 2456, 2663, 3070, 4912, 5326, 6140, 10652, 12280, 13315, 21304, 24560, 26630, 42608, 53260, 106520, 213040, 817541, 1635082, 3270164, 4087705, 6540328, 8175410, 13080656, 16350820, 32701640, 65403280]

約数ペア:

[(1, 65403280), (2, 32701640), (4, 16350820), (5, 13080656), (8, 8175410), (10, 6540328), (16, 4087705), (20, 3270164), (40, 1635082), (80, 817541), (307, 213040), (614, 106520), (1228, 53260), (1535, 42608), (2456, 26630), (2663, 24560), (3070, 21304), (4912, 13315), (5326, 12280), (6140, 10652)]