18911490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48491}}^1$

素因数の和:48514

約数の個数: 32

約数和(自身を含む): 48879936

約数和(自身を除く): 29968446

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 48491, 96982, 145473, 242455, 290946, 484910, 630383, 727365, 1260766, 1454730, 1891149, 3151915, 3782298, 6303830, 9455745, 18911490]

約数ペア:

[(1, 18911490), (2, 9455745), (3, 6303830), (5, 3782298), (6, 3151915), (10, 1891149), (13, 1454730), (15, 1260766), (26, 727365), (30, 630383), (39, 484910), (65, 290946), (78, 242455), (130, 145473), (195, 96982), (390, 48491)]