897400

素因数分解:

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

素因数の和:664

約数の個数: 48

約数和(自身を含む): 2388240

約数和(自身を除く): 1490840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 641, 700, 1282, 1400, 2564, 3205, 4487, 5128, 6410, 8974, 12820, 16025, 17948, 22435, 25640, 32050, 35896, 44870, 64100, 89740, 112175, 128200, 179480, 224350, 448700, 897400]

約数ペア:

[(1, 897400), (2, 448700), (4, 224350), (5, 179480), (7, 128200), (8, 112175), (10, 89740), (14, 64100), (20, 44870), (25, 35896), (28, 32050), (35, 25640), (40, 22435), (50, 17948), (56, 16025), (70, 12820), (100, 8974), (140, 6410), (175, 5128), (200, 4487), (280, 3205), (350, 2564), (641, 1400), (700, 1282)]