31397500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:704

約数の個数: 60

約数和(自身を含む): 72383080

約数和(自身を除く): 40985580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 625, 661, 950, 1250, 1322, 1900, 2375, 2500, 2644, 3305, 4750, 6610, 9500, 11875, 12559, 13220, 16525, 23750, 25118, 33050, 47500, 50236, 62795, 66100, 82625, 125590, 165250, 251180, 313975, 330500, 413125, 627950, 826250, 1255900, 1569875, 1652500, 3139750, 6279500, 7849375, 15698750, 31397500]

約数ペア:

[(1, 31397500), (2, 15698750), (4, 7849375), (5, 6279500), (10, 3139750), (19, 1652500), (20, 1569875), (25, 1255900), (38, 826250), (50, 627950), (76, 413125), (95, 330500), (100, 313975), (125, 251180), (190, 165250), (250, 125590), (380, 82625), (475, 66100), (500, 62795), (625, 50236), (661, 47500), (950, 33050), (1250, 25118), (1322, 23750), (1900, 16525), (2375, 13220), (2500, 12559), (2644, 11875), (3305, 9500), (4750, 6610)]