20412840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1319

約数の個数: 128

約数和(自身を含む): 73728000

約数和(自身を除く): 53315160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1279, 1330, 1596, 1995, 2280, 2558, 2660, 3192, 3837, 3990, 5116, 5320, 6395, 7674, 7980, 8953, 10232, 12790, 15348, 15960, 17906, 19185, 24301, 25580, 26859, 30696, 35812, 38370, 44765, 48602, 51160, 53718, 71624, 72903, 76740, 89530, 97204, 107436, 121505, 134295, 145806, 153480, 170107, 179060, 194408, 214872, 243010, 268590, 291612, 340214, 358120, 364515, 486020, 510321, 537180, 583224, 680428, 729030, 850535, 972040, 1020642, 1074360, 1360856, 1458060, 1701070, 2041284, 2551605, 2916120, 3402140, 4082568, 5103210, 6804280, 10206420, 20412840]

約数ペア:

[(1, 20412840), (2, 10206420), (3, 6804280), (4, 5103210), (5, 4082568), (6, 3402140), (7, 2916120), (8, 2551605), (10, 2041284), (12, 1701070), (14, 1458060), (15, 1360856), (19, 1074360), (20, 1020642), (21, 972040), (24, 850535), (28, 729030), (30, 680428), (35, 583224), (38, 537180), (40, 510321), (42, 486020), (56, 364515), (57, 358120), (60, 340214), (70, 291612), (76, 268590), (84, 243010), (95, 214872), (105, 194408), (114, 179060), (120, 170107), (133, 153480), (140, 145806), (152, 134295), (168, 121505), (190, 107436), (210, 97204), (228, 89530), (266, 76740), (280, 72903), (285, 71624), (380, 53718), (399, 51160), (420, 48602), (456, 44765), (532, 38370), (570, 35812), (665, 30696), (760, 26859), (798, 25580), (840, 24301), (1064, 19185), (1140, 17906), (1279, 15960), (1330, 15348), (1596, 12790), (1995, 10232), (2280, 8953), (2558, 7980), (2660, 7674), (3192, 6395), (3837, 5320), (3990, 5116)]