285880000

素因数分解:

$2^6\times 5^4\times 7^1\times {\mathrm{1021}}^1$

素因数の和:1060

約数の個数: 140

約数和(自身を含む): 810952912

約数和(自身を除く): 525072912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 320, 350, 400, 448, 500, 560, 625, 700, 800, 875, 1000, 1021, 1120, 1250, 1400, 1600, 1750, 2000, 2042, 2240, 2500, 2800, 3500, 4000, 4084, 4375, 5000, 5105, 5600, 7000, 7147, 8000, 8168, 8750, 10000, 10210, 11200, 14000, 14294, 16336, 17500, 20000, 20420, 25525, 28000, 28588, 32672, 35000, 35735, 40000, 40840, 51050, 56000, 57176, 65344, 70000, 71470, 81680, 102100, 114352, 127625, 140000, 142940, 163360, 178675, 204200, 228704, 255250, 280000, 285880, 326720, 357350, 408400, 457408, 510500, 571760, 638125, 714700, 816800, 893375, 1021000, 1143520, 1276250, 1429400, 1633600, 1786750, 2042000, 2287040, 2552500, 2858800, 3573500, 4084000, 4466875, 5105000, 5717600, 7147000, 8168000, 8933750, 10210000, 11435200, 14294000, 17867500, 20420000, 28588000, 35735000, 40840000, 57176000, 71470000, 142940000, 285880000]

約数ペア:

[(1, 285880000), (2, 142940000), (4, 71470000), (5, 57176000), (7, 40840000), (8, 35735000), (10, 28588000), (14, 20420000), (16, 17867500), (20, 14294000), (25, 11435200), (28, 10210000), (32, 8933750), (35, 8168000), (40, 7147000), (50, 5717600), (56, 5105000), (64, 4466875), (70, 4084000), (80, 3573500), (100, 2858800), (112, 2552500), (125, 2287040), (140, 2042000), (160, 1786750), (175, 1633600), (200, 1429400), (224, 1276250), (250, 1143520), (280, 1021000), (320, 893375), (350, 816800), (400, 714700), (448, 638125), (500, 571760), (560, 510500), (625, 457408), (700, 408400), (800, 357350), (875, 326720), (1000, 285880), (1021, 280000), (1120, 255250), (1250, 228704), (1400, 204200), (1600, 178675), (1750, 163360), (2000, 142940), (2042, 140000), (2240, 127625), (2500, 114352), (2800, 102100), (3500, 81680), (4000, 71470), (4084, 70000), (4375, 65344), (5000, 57176), (5105, 56000), (5600, 51050), (7000, 40840), (7147, 40000), (8000, 35735), (8168, 35000), (8750, 32672), (10000, 28588), (10210, 28000), (11200, 25525), (14000, 20420), (14294, 20000), (16336, 17500)]