27990480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{16661}}^1$

素因数の和:16684

約数の個数: 80

約数和(自身を含む): 99172224

約数和(自身を除く): 71181744

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 16661, 33322, 49983, 66644, 83305, 99966, 116627, 133288, 166610, 199932, 233254, 249915, 266576, 333220, 349881, 399864, 466508, 499830, 583135, 666440, 699762, 799728, 933016, 999660, 1166270, 1332880, 1399524, 1749405, 1866032, 1999320, 2332540, 2799048, 3498810, 3998640, 4665080, 5598096, 6997620, 9330160, 13995240, 27990480]

約数ペア:

[(1, 27990480), (2, 13995240), (3, 9330160), (4, 6997620), (5, 5598096), (6, 4665080), (7, 3998640), (8, 3498810), (10, 2799048), (12, 2332540), (14, 1999320), (15, 1866032), (16, 1749405), (20, 1399524), (21, 1332880), (24, 1166270), (28, 999660), (30, 933016), (35, 799728), (40, 699762), (42, 666440), (48, 583135), (56, 499830), (60, 466508), (70, 399864), (80, 349881), (84, 333220), (105, 266576), (112, 249915), (120, 233254), (140, 199932), (168, 166610), (210, 133288), (240, 116627), (280, 99966), (336, 83305), (420, 66644), (560, 49983), (840, 33322), (1680, 16661)]