21282400

素因数分解:

$2^5\times 5^2\times {\mathrm{37}}^1\times {\mathrm{719}}^1$

素因数の和:776

約数の個数: 72

約数和(自身を含む): 53434080

約数和(自身を除く): 32151680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 74, 80, 100, 148, 160, 185, 200, 296, 370, 400, 592, 719, 740, 800, 925, 1184, 1438, 1480, 1850, 2876, 2960, 3595, 3700, 5752, 5920, 7190, 7400, 11504, 14380, 14800, 17975, 23008, 26603, 28760, 29600, 35950, 53206, 57520, 71900, 106412, 115040, 133015, 143800, 212824, 266030, 287600, 425648, 532060, 575200, 665075, 851296, 1064120, 1330150, 2128240, 2660300, 4256480, 5320600, 10641200, 21282400]

約数ペア:

[(1, 21282400), (2, 10641200), (4, 5320600), (5, 4256480), (8, 2660300), (10, 2128240), (16, 1330150), (20, 1064120), (25, 851296), (32, 665075), (37, 575200), (40, 532060), (50, 425648), (74, 287600), (80, 266030), (100, 212824), (148, 143800), (160, 133015), (185, 115040), (200, 106412), (296, 71900), (370, 57520), (400, 53206), (592, 35950), (719, 29600), (740, 28760), (800, 26603), (925, 23008), (1184, 17975), (1438, 14800), (1480, 14380), (1850, 11504), (2876, 7400), (2960, 7190), (3595, 5920), (3700, 5752)]