1855000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{53}}^1$

素因数の和:86

約数の個数: 80

約数和(自身を含む): 5060880

約数和(自身を除く): 3205880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 53, 56, 70, 100, 106, 125, 140, 175, 200, 212, 250, 265, 280, 350, 371, 424, 500, 530, 625, 700, 742, 875, 1000, 1060, 1250, 1325, 1400, 1484, 1750, 1855, 2120, 2500, 2650, 2968, 3500, 3710, 4375, 5000, 5300, 6625, 7000, 7420, 8750, 9275, 10600, 13250, 14840, 17500, 18550, 26500, 33125, 35000, 37100, 46375, 53000, 66250, 74200, 92750, 132500, 185500, 231875, 265000, 371000, 463750, 927500, 1855000]

約数ペア:

[(1, 1855000), (2, 927500), (4, 463750), (5, 371000), (7, 265000), (8, 231875), (10, 185500), (14, 132500), (20, 92750), (25, 74200), (28, 66250), (35, 53000), (40, 46375), (50, 37100), (53, 35000), (56, 33125), (70, 26500), (100, 18550), (106, 17500), (125, 14840), (140, 13250), (175, 10600), (200, 9275), (212, 8750), (250, 7420), (265, 7000), (280, 6625), (350, 5300), (371, 5000), (424, 4375), (500, 3710), (530, 3500), (625, 2968), (700, 2650), (742, 2500), (875, 2120), (1000, 1855), (1060, 1750), (1250, 1484), (1325, 1400)]