162800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:66

約数の個数: 60

約数和(自身を含む): 438216

約数和(自身を除く): 275416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 37, 40, 44, 50, 55, 74, 80, 88, 100, 110, 148, 176, 185, 200, 220, 275, 296, 370, 400, 407, 440, 550, 592, 740, 814, 880, 925, 1100, 1480, 1628, 1850, 2035, 2200, 2960, 3256, 3700, 4070, 4400, 6512, 7400, 8140, 10175, 14800, 16280, 20350, 32560, 40700, 81400, 162800]

約数ペア:

[(1, 162800), (2, 81400), (4, 40700), (5, 32560), (8, 20350), (10, 16280), (11, 14800), (16, 10175), (20, 8140), (22, 7400), (25, 6512), (37, 4400), (40, 4070), (44, 3700), (50, 3256), (55, 2960), (74, 2200), (80, 2035), (88, 1850), (100, 1628), (110, 1480), (148, 1100), (176, 925), (185, 880), (200, 814), (220, 740), (275, 592), (296, 550), (370, 440), (400, 407)]