15885920

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2309}}^1$

素因数の和:2367

約数の個数: 48

約数和(自身を含む): 38419920

約数和(自身を除く): 22534000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 2309, 3440, 4618, 6880, 9236, 11545, 18472, 23090, 36944, 46180, 73888, 92360, 99287, 184720, 198574, 369440, 397148, 496435, 794296, 992870, 1588592, 1985740, 3177184, 3971480, 7942960, 15885920]

約数ペア:

[(1, 15885920), (2, 7942960), (4, 3971480), (5, 3177184), (8, 1985740), (10, 1588592), (16, 992870), (20, 794296), (32, 496435), (40, 397148), (43, 369440), (80, 198574), (86, 184720), (160, 99287), (172, 92360), (215, 73888), (344, 46180), (430, 36944), (688, 23090), (860, 18472), (1376, 11545), (1720, 9236), (2309, 6880), (3440, 4618)]