20793419120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{87133}}^1$

素因数の和:87322

約数の個数: 80

約数和(自身を含む): 51213879840

約数和(自身を除く): 30420460720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 157, 190, 304, 314, 380, 628, 760, 785, 1256, 1520, 1570, 2512, 2983, 3140, 5966, 6280, 11932, 12560, 14915, 23864, 29830, 47728, 59660, 87133, 119320, 174266, 238640, 348532, 435665, 697064, 871330, 1394128, 1655527, 1742660, 3311054, 3485320, 6622108, 6970640, 8277635, 13244216, 13679881, 16555270, 26488432, 27359762, 33110540, 54719524, 66221080, 68399405, 109439048, 132442160, 136798810, 218878096, 259917739, 273597620, 519835478, 547195240, 1039670956, 1094390480, 1299588695, 2079341912, 2599177390, 4158683824, 5198354780, 10396709560, 20793419120]

約数ペア:

[(1, 20793419120), (2, 10396709560), (4, 5198354780), (5, 4158683824), (8, 2599177390), (10, 2079341912), (16, 1299588695), (19, 1094390480), (20, 1039670956), (38, 547195240), (40, 519835478), (76, 273597620), (80, 259917739), (95, 218878096), (152, 136798810), (157, 132442160), (190, 109439048), (304, 68399405), (314, 66221080), (380, 54719524), (628, 33110540), (760, 27359762), (785, 26488432), (1256, 16555270), (1520, 13679881), (1570, 13244216), (2512, 8277635), (2983, 6970640), (3140, 6622108), (5966, 3485320), (6280, 3311054), (11932, 1742660), (12560, 1655527), (14915, 1394128), (23864, 871330), (29830, 697064), (47728, 435665), (59660, 348532), (87133, 238640), (119320, 174266)]