209225240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{1951}}^1$

素因数の和:2352

約数の個数: 64

約数和(自身を含む): 539688960

約数和(自身を除く): 330463720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 383, 766, 1532, 1915, 1951, 2681, 3064, 3830, 3902, 5362, 7660, 7804, 9755, 10724, 13405, 13657, 15320, 15608, 19510, 21448, 26810, 27314, 39020, 53620, 54628, 68285, 78040, 107240, 109256, 136570, 273140, 546280, 747233, 1494466, 2988932, 3736165, 5230631, 5977864, 7472330, 10461262, 14944660, 20922524, 26153155, 29889320, 41845048, 52306310, 104612620, 209225240]

約数ペア:

[(1, 209225240), (2, 104612620), (4, 52306310), (5, 41845048), (7, 29889320), (8, 26153155), (10, 20922524), (14, 14944660), (20, 10461262), (28, 7472330), (35, 5977864), (40, 5230631), (56, 3736165), (70, 2988932), (140, 1494466), (280, 747233), (383, 546280), (766, 273140), (1532, 136570), (1915, 109256), (1951, 107240), (2681, 78040), (3064, 68285), (3830, 54628), (3902, 53620), (5362, 39020), (7660, 27314), (7804, 26810), (9755, 21448), (10724, 19510), (13405, 15608), (13657, 15320)]