20562520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2749}}^1$

素因数の和:2788

約数の個数: 64

約数和(自身を含む): 53460000

約数和(自身を除く): 32897480

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2749, 3740, 5498, 7480, 10996, 13745, 21992, 27490, 30239, 46733, 54980, 60478, 93466, 109960, 120956, 151195, 186932, 233665, 241912, 302390, 373864, 467330, 514063, 604780, 934660, 1028126, 1209560, 1869320, 2056252, 2570315, 4112504, 5140630, 10281260, 20562520]

約数ペア:

[(1, 20562520), (2, 10281260), (4, 5140630), (5, 4112504), (8, 2570315), (10, 2056252), (11, 1869320), (17, 1209560), (20, 1028126), (22, 934660), (34, 604780), (40, 514063), (44, 467330), (55, 373864), (68, 302390), (85, 241912), (88, 233665), (110, 186932), (136, 151195), (170, 120956), (187, 109960), (220, 93466), (340, 60478), (374, 54980), (440, 46733), (680, 30239), (748, 27490), (935, 21992), (1496, 13745), (1870, 10996), (2749, 7480), (3740, 5498)]