38872100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:573

約数の個数: 72

約数和(自身を含む): 91140000

約数和(自身を除く): 52267900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 380, 410, 475, 499, 779, 820, 950, 998, 1025, 1558, 1900, 1996, 2050, 2495, 3116, 3895, 4100, 4990, 7790, 9481, 9980, 12475, 15580, 18962, 19475, 20459, 24950, 37924, 38950, 40918, 47405, 49900, 77900, 81836, 94810, 102295, 189620, 204590, 237025, 388721, 409180, 474050, 511475, 777442, 948100, 1022950, 1554884, 1943605, 2045900, 3887210, 7774420, 9718025, 19436050, 38872100]

約数ペア:

[(1, 38872100), (2, 19436050), (4, 9718025), (5, 7774420), (10, 3887210), (19, 2045900), (20, 1943605), (25, 1554884), (38, 1022950), (41, 948100), (50, 777442), (76, 511475), (82, 474050), (95, 409180), (100, 388721), (164, 237025), (190, 204590), (205, 189620), (380, 102295), (410, 94810), (475, 81836), (499, 77900), (779, 49900), (820, 47405), (950, 40918), (998, 38950), (1025, 37924), (1558, 24950), (1900, 20459), (1996, 19475), (2050, 18962), (2495, 15580), (3116, 12475), (3895, 9980), (4100, 9481), (4990, 7790)]