20161177880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{78229}}^1$

素因数の和:78636

約数の個数: 64

約数和(自身を含む): 48158388000

約数和(自身を除く): 27997210120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 379, 680, 758, 1516, 1895, 3032, 3790, 6443, 7580, 12886, 15160, 25772, 32215, 51544, 64430, 78229, 128860, 156458, 257720, 312916, 391145, 625832, 782290, 1329893, 1564580, 2659786, 3129160, 5319572, 6649465, 10639144, 13298930, 26597860, 29648791, 53195720, 59297582, 118595164, 148243955, 237190328, 296487910, 504029447, 592975820, 1008058894, 1185951640, 2016117788, 2520147235, 4032235576, 5040294470, 10080588940, 20161177880]

約数ペア:

[(1, 20161177880), (2, 10080588940), (4, 5040294470), (5, 4032235576), (8, 2520147235), (10, 2016117788), (17, 1185951640), (20, 1008058894), (34, 592975820), (40, 504029447), (68, 296487910), (85, 237190328), (136, 148243955), (170, 118595164), (340, 59297582), (379, 53195720), (680, 29648791), (758, 26597860), (1516, 13298930), (1895, 10639144), (3032, 6649465), (3790, 5319572), (6443, 3129160), (7580, 2659786), (12886, 1564580), (15160, 1329893), (25772, 782290), (32215, 625832), (51544, 391145), (64430, 312916), (78229, 257720), (128860, 156458)]