1272800

素因数分解:

$2^5\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 72

約数和(自身を含む): 3265416

約数和(自身を除く): 1992616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 43, 50, 74, 80, 86, 100, 148, 160, 172, 185, 200, 215, 296, 344, 370, 400, 430, 592, 688, 740, 800, 860, 925, 1075, 1184, 1376, 1480, 1591, 1720, 1850, 2150, 2960, 3182, 3440, 3700, 4300, 5920, 6364, 6880, 7400, 7955, 8600, 12728, 14800, 15910, 17200, 25456, 29600, 31820, 34400, 39775, 50912, 63640, 79550, 127280, 159100, 254560, 318200, 636400, 1272800]

約数ペア:

[(1, 1272800), (2, 636400), (4, 318200), (5, 254560), (8, 159100), (10, 127280), (16, 79550), (20, 63640), (25, 50912), (32, 39775), (37, 34400), (40, 31820), (43, 29600), (50, 25456), (74, 17200), (80, 15910), (86, 14800), (100, 12728), (148, 8600), (160, 7955), (172, 7400), (185, 6880), (200, 6364), (215, 5920), (296, 4300), (344, 3700), (370, 3440), (400, 3182), (430, 2960), (592, 2150), (688, 1850), (740, 1720), (800, 1591), (860, 1480), (925, 1376), (1075, 1184)]