20124420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 60211200

約数和(自身を除く): 40086780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 127, 139, 190, 228, 254, 278, 285, 380, 381, 417, 508, 556, 570, 635, 695, 762, 834, 1140, 1270, 1390, 1524, 1668, 1905, 2085, 2413, 2540, 2641, 2780, 3810, 4170, 4826, 5282, 7239, 7620, 7923, 8340, 9652, 10564, 12065, 13205, 14478, 15846, 17653, 24130, 26410, 28956, 31692, 35306, 36195, 39615, 48260, 52820, 52959, 70612, 72390, 79230, 88265, 105918, 144780, 158460, 176530, 211836, 264795, 335407, 353060, 529590, 670814, 1006221, 1059180, 1341628, 1677035, 2012442, 3354070, 4024884, 5031105, 6708140, 10062210, 20124420]

約数ペア:

[(1, 20124420), (2, 10062210), (3, 6708140), (4, 5031105), (5, 4024884), (6, 3354070), (10, 2012442), (12, 1677035), (15, 1341628), (19, 1059180), (20, 1006221), (30, 670814), (38, 529590), (57, 353060), (60, 335407), (76, 264795), (95, 211836), (114, 176530), (127, 158460), (139, 144780), (190, 105918), (228, 88265), (254, 79230), (278, 72390), (285, 70612), (380, 52959), (381, 52820), (417, 48260), (508, 39615), (556, 36195), (570, 35306), (635, 31692), (695, 28956), (762, 26410), (834, 24130), (1140, 17653), (1270, 15846), (1390, 14478), (1524, 13205), (1668, 12065), (1905, 10564), (2085, 9652), (2413, 8340), (2540, 7923), (2641, 7620), (2780, 7239), (3810, 5282), (4170, 4826)]