19458486520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{496897}}^1$

素因数の和:497008

約数の個数: 64

約数和(自身を含む): 48298485600

約数和(自身を除く): 28839999080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 440, 445, 712, 890, 979, 1780, 1958, 3560, 3916, 4895, 7832, 9790, 19580, 39160, 496897, 993794, 1987588, 2484485, 3975176, 4968970, 5465867, 9937940, 10931734, 19875880, 21863468, 27329335, 43726936, 44223833, 54658670, 88447666, 109317340, 176895332, 218634680, 221119165, 353790664, 442238330, 486462163, 884476660, 972924326, 1768953320, 1945848652, 2432310815, 3891697304, 4864621630, 9729243260, 19458486520]

約数ペア:

[(1, 19458486520), (2, 9729243260), (4, 4864621630), (5, 3891697304), (8, 2432310815), (10, 1945848652), (11, 1768953320), (20, 972924326), (22, 884476660), (40, 486462163), (44, 442238330), (55, 353790664), (88, 221119165), (89, 218634680), (110, 176895332), (178, 109317340), (220, 88447666), (356, 54658670), (440, 44223833), (445, 43726936), (712, 27329335), (890, 21863468), (979, 19875880), (1780, 10931734), (1958, 9937940), (3560, 5465867), (3916, 4968970), (4895, 3975176), (7832, 2484485), (9790, 1987588), (19580, 993794), (39160, 496897)]