12790100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1619}}^1$

素因数の和:1712

約数の個数: 36

約数和(自身を含む): 28123200

約数和(自身を除く): 15333100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1619, 1975, 3238, 3950, 6476, 7900, 8095, 16190, 32380, 40475, 80950, 127901, 161900, 255802, 511604, 639505, 1279010, 2558020, 3197525, 6395050, 12790100]

約数ペア:

[(1, 12790100), (2, 6395050), (4, 3197525), (5, 2558020), (10, 1279010), (20, 639505), (25, 511604), (50, 255802), (79, 161900), (100, 127901), (158, 80950), (316, 40475), (395, 32380), (790, 16190), (1580, 8095), (1619, 7900), (1975, 6476), (3238, 3950)]