27780760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2111}}^1$

素因数の和:2176

約数の個数: 64

約数和(自身を含む): 72990720

約数和(自身を除く): 45209960

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, 1645, 1880, 2111, 2632, 3290, 4222, 6580, 8444, 10555, 13160, 14777, 16888, 21110, 29554, 42220, 59108, 73885, 84440, 99217, 118216, 147770, 198434, 295540, 396868, 496085, 591080, 694519, 793736, 992170, 1389038, 1984340, 2778076, 3472595, 3968680, 5556152, 6945190, 13890380, 27780760]

約数ペア:

[(1, 27780760), (2, 13890380), (4, 6945190), (5, 5556152), (7, 3968680), (8, 3472595), (10, 2778076), (14, 1984340), (20, 1389038), (28, 992170), (35, 793736), (40, 694519), (47, 591080), (56, 496085), (70, 396868), (94, 295540), (140, 198434), (188, 147770), (235, 118216), (280, 99217), (329, 84440), (376, 73885), (470, 59108), (658, 42220), (940, 29554), (1316, 21110), (1645, 16888), (1880, 14777), (2111, 13160), (2632, 10555), (3290, 8444), (4222, 6580)]