4420400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:318

約数の個数: 60

約数和(自身を含む): 10909272

約数和(自身を除く): 6488872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 257, 344, 400, 430, 514, 688, 860, 1028, 1075, 1285, 1720, 2056, 2150, 2570, 3440, 4112, 4300, 5140, 6425, 8600, 10280, 11051, 12850, 17200, 20560, 22102, 25700, 44204, 51400, 55255, 88408, 102800, 110510, 176816, 221020, 276275, 442040, 552550, 884080, 1105100, 2210200, 4420400]

約数ペア:

[(1, 4420400), (2, 2210200), (4, 1105100), (5, 884080), (8, 552550), (10, 442040), (16, 276275), (20, 221020), (25, 176816), (40, 110510), (43, 102800), (50, 88408), (80, 55255), (86, 51400), (100, 44204), (172, 25700), (200, 22102), (215, 20560), (257, 17200), (344, 12850), (400, 11051), (430, 10280), (514, 8600), (688, 6425), (860, 5140), (1028, 4300), (1075, 4112), (1285, 3440), (1720, 2570), (2056, 2150)]