4390280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2677}}^1$

素因数の和:2729

約数の個数: 32

約数和(自身を含む): 10122840

約数和(自身を除く): 5732560

約数列:

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

約数ペア:

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