39863900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20981}}^1$

素因数の和:21014

約数の個数: 36

約数和(自身を含む): 91061880

約数和(自身を除く): 51197980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 20981, 41962, 83924, 104905, 209810, 398639, 419620, 524525, 797278, 1049050, 1594556, 1993195, 2098100, 3986390, 7972780, 9965975, 19931950, 39863900]

約数ペア:

[(1, 39863900), (2, 19931950), (4, 9965975), (5, 7972780), (10, 3986390), (19, 2098100), (20, 1993195), (25, 1594556), (38, 1049050), (50, 797278), (76, 524525), (95, 419620), (100, 398639), (190, 209810), (380, 104905), (475, 83924), (950, 41962), (1900, 20981)]