18542440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1409}}^1$

素因数の和:1474

約数の個数: 64

約数和(自身を含む): 48729600

約数和(自身を除く): 30187160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1409, 1645, 1880, 2632, 2818, 3290, 5636, 6580, 7045, 9863, 11272, 13160, 14090, 19726, 28180, 39452, 49315, 56360, 66223, 78904, 98630, 132446, 197260, 264892, 331115, 394520, 463561, 529784, 662230, 927122, 1324460, 1854244, 2317805, 2648920, 3708488, 4635610, 9271220, 18542440]

約数ペア:

[(1, 18542440), (2, 9271220), (4, 4635610), (5, 3708488), (7, 2648920), (8, 2317805), (10, 1854244), (14, 1324460), (20, 927122), (28, 662230), (35, 529784), (40, 463561), (47, 394520), (56, 331115), (70, 264892), (94, 197260), (140, 132446), (188, 98630), (235, 78904), (280, 66223), (329, 56360), (376, 49315), (470, 39452), (658, 28180), (940, 19726), (1316, 14090), (1409, 13160), (1645, 11272), (1880, 9863), (2632, 7045), (2818, 6580), (3290, 5636)]