8780560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2677}}^1$

素因数の和:2731

約数の個数: 40

約数和(自身を含む): 20920536

約数和(自身を除く): 12139976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2677, 3280, 5354, 10708, 13385, 21416, 26770, 42832, 53540, 107080, 109757, 214160, 219514, 439028, 548785, 878056, 1097570, 1756112, 2195140, 4390280, 8780560]

約数ペア:

[(1, 8780560), (2, 4390280), (4, 2195140), (5, 1756112), (8, 1097570), (10, 878056), (16, 548785), (20, 439028), (40, 219514), (41, 214160), (80, 109757), (82, 107080), (164, 53540), (205, 42832), (328, 26770), (410, 21416), (656, 13385), (820, 10708), (1640, 5354), (2677, 3280)]