18124880

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3191}}^1$

素因数の和:3275

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 24622384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3191, 5680, 6382, 12764, 15955, 25528, 31910, 51056, 63820, 127640, 226561, 255280, 453122, 906244, 1132805, 1812488, 2265610, 3624976, 4531220, 9062440, 18124880]

約数ペア:

[(1, 18124880), (2, 9062440), (4, 4531220), (5, 3624976), (8, 2265610), (10, 1812488), (16, 1132805), (20, 906244), (40, 453122), (71, 255280), (80, 226561), (142, 127640), (284, 63820), (355, 51056), (568, 31910), (710, 25528), (1136, 15955), (1420, 12764), (2840, 6382), (3191, 5680)]