85206560

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^2\times {\mathrm{389}}^1$

素因数の和:478

約数の個数: 72

約数和(自身を含む): 207419940

約数和(自身を除く): 122213380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 389, 592, 740, 778, 1184, 1369, 1480, 1556, 1945, 2738, 2960, 3112, 3890, 5476, 5920, 6224, 6845, 7780, 10952, 12448, 13690, 14393, 15560, 21904, 27380, 28786, 31120, 43808, 54760, 57572, 62240, 71965, 109520, 115144, 143930, 219040, 230288, 287860, 460576, 532541, 575720, 1065082, 1151440, 2130164, 2302880, 2662705, 4260328, 5325410, 8520656, 10650820, 17041312, 21301640, 42603280, 85206560]

約数ペア:

[(1, 85206560), (2, 42603280), (4, 21301640), (5, 17041312), (8, 10650820), (10, 8520656), (16, 5325410), (20, 4260328), (32, 2662705), (37, 2302880), (40, 2130164), (74, 1151440), (80, 1065082), (148, 575720), (160, 532541), (185, 460576), (296, 287860), (370, 230288), (389, 219040), (592, 143930), (740, 115144), (778, 109520), (1184, 71965), (1369, 62240), (1480, 57572), (1556, 54760), (1945, 43808), (2738, 31120), (2960, 28786), (3112, 27380), (3890, 21904), (5476, 15560), (5920, 14393), (6224, 13690), (6845, 12448), (7780, 10952)]