30838140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 100638720

約数和(自身を除く): 69800580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 71, 76, 90, 95, 114, 127, 142, 171, 180, 190, 213, 228, 254, 284, 285, 342, 355, 380, 381, 426, 508, 570, 635, 639, 684, 710, 762, 852, 855, 1065, 1140, 1143, 1270, 1278, 1349, 1420, 1524, 1710, 1905, 2130, 2286, 2413, 2540, 2556, 2698, 3195, 3420, 3810, 4047, 4260, 4572, 4826, 5396, 5715, 6390, 6745, 7239, 7620, 8094, 9017, 9652, 11430, 12065, 12141, 12780, 13490, 14478, 16188, 18034, 20235, 21717, 22860, 24130, 24282, 26980, 27051, 28956, 36068, 36195, 40470, 43434, 45085, 48260, 48564, 54102, 60705, 72390, 80940, 81153, 86868, 90170, 108204, 108585, 121410, 135255, 144780, 162306, 171323, 180340, 217170, 242820, 270510, 324612, 342646, 405765, 434340, 513969, 541020, 685292, 811530, 856615, 1027938, 1541907, 1623060, 1713230, 2055876, 2569845, 3083814, 3426460, 5139690, 6167628, 7709535, 10279380, 15419070, 30838140]

約数ペア:

[(1, 30838140), (2, 15419070), (3, 10279380), (4, 7709535), (5, 6167628), (6, 5139690), (9, 3426460), (10, 3083814), (12, 2569845), (15, 2055876), (18, 1713230), (19, 1623060), (20, 1541907), (30, 1027938), (36, 856615), (38, 811530), (45, 685292), (57, 541020), (60, 513969), (71, 434340), (76, 405765), (90, 342646), (95, 324612), (114, 270510), (127, 242820), (142, 217170), (171, 180340), (180, 171323), (190, 162306), (213, 144780), (228, 135255), (254, 121410), (284, 108585), (285, 108204), (342, 90170), (355, 86868), (380, 81153), (381, 80940), (426, 72390), (508, 60705), (570, 54102), (635, 48564), (639, 48260), (684, 45085), (710, 43434), (762, 40470), (852, 36195), (855, 36068), (1065, 28956), (1140, 27051), (1143, 26980), (1270, 24282), (1278, 24130), (1349, 22860), (1420, 21717), (1524, 20235), (1710, 18034), (1905, 16188), (2130, 14478), (2286, 13490), (2413, 12780), (2540, 12141), (2556, 12065), (2698, 11430), (3195, 9652), (3420, 9017), (3810, 8094), (4047, 7620), (4260, 7239), (4572, 6745), (4826, 6390), (5396, 5715)]