181231020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{111871}}^1$

素因数の和:111892

約数の個数: 60

約数和(自身を含む): 568533504

約数和(自身を除く): 387302484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 111871, 223742, 335613, 447484, 559355, 671226, 1006839, 1118710, 1342452, 1678065, 2013678, 2237420, 3020517, 3356130, 4027356, 5034195, 6041034, 6712260, 9061551, 10068390, 12082068, 15102585, 18123102, 20136780, 30205170, 36246204, 45307755, 60410340, 90615510, 181231020]

約数ペア:

[(1, 181231020), (2, 90615510), (3, 60410340), (4, 45307755), (5, 36246204), (6, 30205170), (9, 20136780), (10, 18123102), (12, 15102585), (15, 12082068), (18, 10068390), (20, 9061551), (27, 6712260), (30, 6041034), (36, 5034195), (45, 4027356), (54, 3356130), (60, 3020517), (81, 2237420), (90, 2013678), (108, 1678065), (135, 1342452), (162, 1118710), (180, 1006839), (270, 671226), (324, 559355), (405, 447484), (540, 335613), (810, 223742), (1620, 111871)]