7920440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 19906560

約数和(自身を除く): 11986120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 383, 440, 470, 517, 766, 940, 1034, 1532, 1880, 1915, 2068, 2585, 3064, 3830, 4136, 4213, 5170, 7660, 8426, 10340, 15320, 16852, 18001, 20680, 21065, 33704, 36002, 42130, 72004, 84260, 90005, 144008, 168520, 180010, 198011, 360020, 396022, 720040, 792044, 990055, 1584088, 1980110, 3960220, 7920440]

約数ペア:

[(1, 7920440), (2, 3960220), (4, 1980110), (5, 1584088), (8, 990055), (10, 792044), (11, 720040), (20, 396022), (22, 360020), (40, 198011), (44, 180010), (47, 168520), (55, 144008), (88, 90005), (94, 84260), (110, 72004), (188, 42130), (220, 36002), (235, 33704), (376, 21065), (383, 20680), (440, 18001), (470, 16852), (517, 15320), (766, 10340), (940, 8426), (1034, 7660), (1532, 5170), (1880, 4213), (1915, 4136), (2068, 3830), (2585, 3064)]