55180640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20287}}^1$

素因数の和:20319

約数の個数: 48

約数和(自身を含む): 138039552

約数和(自身を除く): 82858912

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 20287, 40574, 81148, 101435, 162296, 202870, 324592, 344879, 405740, 649184, 689758, 811480, 1379516, 1622960, 1724395, 2759032, 3245920, 3448790, 5518064, 6897580, 11036128, 13795160, 27590320, 55180640]

約数ペア:

[(1, 55180640), (2, 27590320), (4, 13795160), (5, 11036128), (8, 6897580), (10, 5518064), (16, 3448790), (17, 3245920), (20, 2759032), (32, 1724395), (34, 1622960), (40, 1379516), (68, 811480), (80, 689758), (85, 649184), (136, 405740), (160, 344879), (170, 324592), (272, 202870), (340, 162296), (544, 101435), (680, 81148), (1360, 40574), (2720, 20287)]