205778820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263819}}^1$

素因数の和:263844

約数の個数: 48

約数和(自身を含む): 620504640

約数和(自身を除く): 414725820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 263819, 527638, 791457, 1055276, 1319095, 1582914, 2638190, 3165828, 3429647, 3957285, 5276380, 6859294, 7914570, 10288941, 13718588, 15829140, 17148235, 20577882, 34296470, 41155764, 51444705, 68592940, 102889410, 205778820]

約数ペア:

[(1, 205778820), (2, 102889410), (3, 68592940), (4, 51444705), (5, 41155764), (6, 34296470), (10, 20577882), (12, 17148235), (13, 15829140), (15, 13718588), (20, 10288941), (26, 7914570), (30, 6859294), (39, 5276380), (52, 3957285), (60, 3429647), (65, 3165828), (78, 2638190), (130, 1582914), (156, 1319095), (195, 1055276), (260, 791457), (390, 527638), (780, 263819)]