389500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:79

約数の個数: 48

約数和(自身を含む): 917280

約数和(自身を除く): 527780

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 125, 164, 190, 205, 250, 380, 410, 475, 500, 779, 820, 950, 1025, 1558, 1900, 2050, 2375, 3116, 3895, 4100, 4750, 5125, 7790, 9500, 10250, 15580, 19475, 20500, 38950, 77900, 97375, 194750, 389500]

約数ペア:

[(1, 389500), (2, 194750), (4, 97375), (5, 77900), (10, 38950), (19, 20500), (20, 19475), (25, 15580), (38, 10250), (41, 9500), (50, 7790), (76, 5125), (82, 4750), (95, 4100), (100, 3895), (125, 3116), (164, 2375), (190, 2050), (205, 1900), (250, 1558), (380, 1025), (410, 950), (475, 820), (500, 779)]