28131250

素因数分解:

$2^1\times 5^5\times 7^1\times {\mathrm{643}}^1$

素因数の和:677

約数の個数: 48

約数和(自身を含む): 60371136

約数和(自身を除く): 32239886

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 625, 643, 875, 1250, 1286, 1750, 3125, 3215, 4375, 4501, 6250, 6430, 8750, 9002, 16075, 21875, 22505, 32150, 43750, 45010, 80375, 112525, 160750, 225050, 401875, 562625, 803750, 1125250, 2009375, 2813125, 4018750, 5626250, 14065625, 28131250]

約数ペア:

[(1, 28131250), (2, 14065625), (5, 5626250), (7, 4018750), (10, 2813125), (14, 2009375), (25, 1125250), (35, 803750), (50, 562625), (70, 401875), (125, 225050), (175, 160750), (250, 112525), (350, 80375), (625, 45010), (643, 43750), (875, 32150), (1250, 22505), (1286, 21875), (1750, 16075), (3125, 9002), (3215, 8750), (4375, 6430), (4501, 6250)]