18905220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{827}}^1$

素因数の和:969

約数の個数: 72

約数和(自身を含む): 57867264

約数和(自身を除く): 38962044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 827, 1143, 1270, 1524, 1654, 1905, 2286, 2481, 2540, 3308, 3810, 4135, 4572, 4962, 5715, 7443, 7620, 8270, 9924, 11430, 12405, 14886, 16540, 22860, 24810, 29772, 37215, 49620, 74430, 105029, 148860, 210058, 315087, 420116, 525145, 630174, 945261, 1050290, 1260348, 1575435, 1890522, 2100580, 3150870, 3781044, 4726305, 6301740, 9452610, 18905220]

約数ペア:

[(1, 18905220), (2, 9452610), (3, 6301740), (4, 4726305), (5, 3781044), (6, 3150870), (9, 2100580), (10, 1890522), (12, 1575435), (15, 1260348), (18, 1050290), (20, 945261), (30, 630174), (36, 525145), (45, 420116), (60, 315087), (90, 210058), (127, 148860), (180, 105029), (254, 74430), (381, 49620), (508, 37215), (635, 29772), (762, 24810), (827, 22860), (1143, 16540), (1270, 14886), (1524, 12405), (1654, 11430), (1905, 9924), (2286, 8270), (2481, 7620), (2540, 7443), (3308, 5715), (3810, 4962), (4135, 4572)]