990799480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{47911}}^1$

素因数の和:47980

約数の個数: 64

約数和(自身を含む): 2483758080

約数和(自身を除く): 1492958600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 4136, 5170, 10340, 20680, 47911, 95822, 191644, 239555, 383288, 479110, 527021, 958220, 1054042, 1916440, 2108084, 2251817, 2635105, 4216168, 4503634, 5270210, 9007268, 10540420, 11259085, 18014536, 21080840, 22518170, 24769987, 45036340, 49539974, 90072680, 99079948, 123849935, 198159896, 247699870, 495399740, 990799480]

約数ペア:

[(1, 990799480), (2, 495399740), (4, 247699870), (5, 198159896), (8, 123849935), (10, 99079948), (11, 90072680), (20, 49539974), (22, 45036340), (40, 24769987), (44, 22518170), (47, 21080840), (55, 18014536), (88, 11259085), (94, 10540420), (110, 9007268), (188, 5270210), (220, 4503634), (235, 4216168), (376, 2635105), (440, 2251817), (470, 2108084), (517, 1916440), (940, 1054042), (1034, 958220), (1880, 527021), (2068, 479110), (2585, 383288), (4136, 239555), (5170, 191644), (10340, 95822), (20680, 47911)]