64520000

素因数分解:

$2^6\times 5^4\times {\mathrm{1613}}^1$

素因数の和:1645

約数の個数: 70

約数和(自身を含む): 160087818

約数和(自身を除く): 95567818

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 1613, 2000, 2500, 3226, 4000, 5000, 6452, 8000, 8065, 10000, 12904, 16130, 20000, 25808, 32260, 40000, 40325, 51616, 64520, 80650, 103232, 129040, 161300, 201625, 258080, 322600, 403250, 516160, 645200, 806500, 1008125, 1290400, 1613000, 2016250, 2580800, 3226000, 4032500, 6452000, 8065000, 12904000, 16130000, 32260000, 64520000]

約数ペア:

[(1, 64520000), (2, 32260000), (4, 16130000), (5, 12904000), (8, 8065000), (10, 6452000), (16, 4032500), (20, 3226000), (25, 2580800), (32, 2016250), (40, 1613000), (50, 1290400), (64, 1008125), (80, 806500), (100, 645200), (125, 516160), (160, 403250), (200, 322600), (250, 258080), (320, 201625), (400, 161300), (500, 129040), (625, 103232), (800, 80650), (1000, 64520), (1250, 51616), (1600, 40325), (1613, 40000), (2000, 32260), (2500, 25808), (3226, 20000), (4000, 16130), (5000, 12904), (6452, 10000), (8000, 8065)]