19609480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1087}}^1$

素因数の和:1150

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 29742200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1087, 1640, 1804, 2174, 2255, 3608, 4348, 4510, 5435, 8696, 9020, 10870, 11957, 18040, 21740, 23914, 43480, 44567, 47828, 59785, 89134, 95656, 119570, 178268, 222835, 239140, 356536, 445670, 478280, 490237, 891340, 980474, 1782680, 1960948, 2451185, 3921896, 4902370, 9804740, 19609480]

約数ペア:

[(1, 19609480), (2, 9804740), (4, 4902370), (5, 3921896), (8, 2451185), (10, 1960948), (11, 1782680), (20, 980474), (22, 891340), (40, 490237), (41, 478280), (44, 445670), (55, 356536), (82, 239140), (88, 222835), (110, 178268), (164, 119570), (205, 95656), (220, 89134), (328, 59785), (410, 47828), (440, 44567), (451, 43480), (820, 23914), (902, 21740), (1087, 18040), (1640, 11957), (1804, 10870), (2174, 9020), (2255, 8696), (3608, 5435), (4348, 4510)]