123600920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71861}}^1$

素因数の和:71915

約数の個数: 32

約数和(自身を含む): 284573520

約数和(自身を除く): 160972600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 71861, 143722, 287444, 359305, 574888, 718610, 1437220, 2874440, 3090023, 6180046, 12360092, 15450115, 24720184, 30900230, 61800460, 123600920]

約数ペア:

[(1, 123600920), (2, 61800460), (4, 30900230), (5, 24720184), (8, 15450115), (10, 12360092), (20, 6180046), (40, 3090023), (43, 2874440), (86, 1437220), (172, 718610), (215, 574888), (344, 359305), (430, 287444), (860, 143722), (1720, 71861)]