8974000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{641}}^1$

素因数の和:671

約数の個数: 80

約数和(自身を含む): 24837696

約数和(自身を除く): 15863696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 641, 700, 875, 1000, 1282, 1400, 1750, 2000, 2564, 2800, 3205, 3500, 4487, 5128, 6410, 7000, 8974, 10256, 12820, 14000, 16025, 17948, 22435, 25640, 32050, 35896, 44870, 51280, 64100, 71792, 80125, 89740, 112175, 128200, 160250, 179480, 224350, 256400, 320500, 358960, 448700, 560875, 641000, 897400, 1121750, 1282000, 1794800, 2243500, 4487000, 8974000]

約数ペア:

[(1, 8974000), (2, 4487000), (4, 2243500), (5, 1794800), (7, 1282000), (8, 1121750), (10, 897400), (14, 641000), (16, 560875), (20, 448700), (25, 358960), (28, 320500), (35, 256400), (40, 224350), (50, 179480), (56, 160250), (70, 128200), (80, 112175), (100, 89740), (112, 80125), (125, 71792), (140, 64100), (175, 51280), (200, 44870), (250, 35896), (280, 32050), (350, 25640), (400, 22435), (500, 17948), (560, 16025), (641, 14000), (700, 12820), (875, 10256), (1000, 8974), (1282, 7000), (1400, 6410), (1750, 5128), (2000, 4487), (2564, 3500), (2800, 3205)]