18888941745

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{421}}^1$

素因数の和:668

約数の個数: 128

約数和(自身を含む): 35294054400

約数和(自身を除く): 16405112655

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 59, 129, 131, 135, 177, 215, 295, 387, 393, 421, 531, 645, 655, 885, 1161, 1179, 1263, 1593, 1935, 1965, 2105, 2537, 2655, 3537, 3789, 5633, 5805, 5895, 6315, 7611, 7729, 7965, 11367, 12685, 16899, 17685, 18103, 18945, 22833, 23187, 24839, 28165, 38055, 38645, 50697, 54309, 55151, 56835, 68499, 69561, 74517, 84495, 90515, 114165, 115935, 124195, 152091, 162927, 165453, 208683, 223551, 253485, 271545, 275755, 332347, 342495, 347805, 372585, 488781, 496359, 670653, 760455, 814635, 827265, 997041, 1043415, 1068077, 1117755, 1489077, 1661735, 2371493, 2443905, 2481795, 2991123, 3204231, 3253909, 3353265, 4985205, 5340385, 7114479, 7445385, 8973369, 9612693, 9761727, 11857465, 14955615, 16021155, 16269545, 21343437, 28838079, 29285181, 35572395, 44866845, 48063465, 48808635, 64030311, 87855543, 106717185, 139918087, 144190395, 146425905, 320151555, 419754261, 439277715, 699590435, 1259262783, 2098771305, 3777788349, 6296313915, 18888941745]

約数ペア:

[(1, 18888941745), (3, 6296313915), (5, 3777788349), (9, 2098771305), (15, 1259262783), (27, 699590435), (43, 439277715), (45, 419754261), (59, 320151555), (129, 146425905), (131, 144190395), (135, 139918087), (177, 106717185), (215, 87855543), (295, 64030311), (387, 48808635), (393, 48063465), (421, 44866845), (531, 35572395), (645, 29285181), (655, 28838079), (885, 21343437), (1161, 16269545), (1179, 16021155), (1263, 14955615), (1593, 11857465), (1935, 9761727), (1965, 9612693), (2105, 8973369), (2537, 7445385), (2655, 7114479), (3537, 5340385), (3789, 4985205), (5633, 3353265), (5805, 3253909), (5895, 3204231), (6315, 2991123), (7611, 2481795), (7729, 2443905), (7965, 2371493), (11367, 1661735), (12685, 1489077), (16899, 1117755), (17685, 1068077), (18103, 1043415), (18945, 997041), (22833, 827265), (23187, 814635), (24839, 760455), (28165, 670653), (38055, 496359), (38645, 488781), (50697, 372585), (54309, 347805), (55151, 342495), (56835, 332347), (68499, 275755), (69561, 271545), (74517, 253485), (84495, 223551), (90515, 208683), (114165, 165453), (115935, 162927), (124195, 152091)]