18042500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{1031}}^1$

素因数の和:1062

約数の個数: 60

約数和(自身を含む): 45135552

約数和(自身を除く): 27093052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 625, 700, 875, 1031, 1250, 1750, 2062, 2500, 3500, 4124, 4375, 5155, 7217, 8750, 10310, 14434, 17500, 20620, 25775, 28868, 36085, 51550, 72170, 103100, 128875, 144340, 180425, 257750, 360850, 515500, 644375, 721700, 902125, 1288750, 1804250, 2577500, 3608500, 4510625, 9021250, 18042500]

約数ペア:

[(1, 18042500), (2, 9021250), (4, 4510625), (5, 3608500), (7, 2577500), (10, 1804250), (14, 1288750), (20, 902125), (25, 721700), (28, 644375), (35, 515500), (50, 360850), (70, 257750), (100, 180425), (125, 144340), (140, 128875), (175, 103100), (250, 72170), (350, 51550), (500, 36085), (625, 28868), (700, 25775), (875, 20620), (1031, 17500), (1250, 14434), (1750, 10310), (2062, 8750), (2500, 7217), (3500, 5155), (4124, 4375)]