1821380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 4427136

約数和(自身を除く): 2605756

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 487, 748, 935, 974, 1870, 1948, 2435, 3740, 4870, 5357, 8279, 9740, 10714, 16558, 21428, 26785, 33116, 41395, 53570, 82790, 91069, 107140, 165580, 182138, 364276, 455345, 910690, 1821380]

約数ペア:

[(1, 1821380), (2, 910690), (4, 455345), (5, 364276), (10, 182138), (11, 165580), (17, 107140), (20, 91069), (22, 82790), (34, 53570), (44, 41395), (55, 33116), (68, 26785), (85, 21428), (110, 16558), (170, 10714), (187, 9740), (220, 8279), (340, 5357), (374, 4870), (487, 3740), (748, 2435), (935, 1948), (974, 1870)]