85400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{61}}^1$

素因数の和:84

約数の個数: 48

約数和(自身を含む): 230640

約数和(自身を除く): 145240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 61, 70, 100, 122, 140, 175, 200, 244, 280, 305, 350, 427, 488, 610, 700, 854, 1220, 1400, 1525, 1708, 2135, 2440, 3050, 3416, 4270, 6100, 8540, 10675, 12200, 17080, 21350, 42700, 85400]

約数ペア:

[(1, 85400), (2, 42700), (4, 21350), (5, 17080), (7, 12200), (8, 10675), (10, 8540), (14, 6100), (20, 4270), (25, 3416), (28, 3050), (35, 2440), (40, 2135), (50, 1708), (56, 1525), (61, 1400), (70, 1220), (100, 854), (122, 700), (140, 610), (175, 488), (200, 427), (244, 350), (280, 305)]