64197400

素因数分解:

$2^3\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1613}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 150102000

約数和(自身を除く): 85904600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 199, 200, 398, 796, 995, 1592, 1613, 1990, 3226, 3980, 4975, 6452, 7960, 8065, 9950, 12904, 16130, 19900, 32260, 39800, 40325, 64520, 80650, 161300, 320987, 322600, 641974, 1283948, 1604935, 2567896, 3209870, 6419740, 8024675, 12839480, 16049350, 32098700, 64197400]

約数ペア:

[(1, 64197400), (2, 32098700), (4, 16049350), (5, 12839480), (8, 8024675), (10, 6419740), (20, 3209870), (25, 2567896), (40, 1604935), (50, 1283948), (100, 641974), (199, 322600), (200, 320987), (398, 161300), (796, 80650), (995, 64520), (1592, 40325), (1613, 39800), (1990, 32260), (3226, 19900), (3980, 16130), (4975, 12904), (6452, 9950), (7960, 8065)]