77900

素因数分解:

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

素因数の和:74

約数の個数: 36

約数和(自身を含む): 182280

約数和(自身を除く): 104380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 380, 410, 475, 779, 820, 950, 1025, 1558, 1900, 2050, 3116, 3895, 4100, 7790, 15580, 19475, 38950, 77900]

約数ペア:

[(1, 77900), (2, 38950), (4, 19475), (5, 15580), (10, 7790), (19, 4100), (20, 3895), (25, 3116), (38, 2050), (41, 1900), (50, 1558), (76, 1025), (82, 950), (95, 820), (100, 779), (164, 475), (190, 410), (205, 380)]