1681328563456

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{8363}}^1\times {\mathrm{41333}}^1$

素因数の和:49731

約数の個数: 72

約数和(自身を含む): 3533233626720

約数和(自身を除く): 1851905063264

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4864, 8363, 16726, 33452, 41333, 66904, 82666, 133808, 158897, 165332, 267616, 317794, 330664, 535232, 635588, 661328, 785327, 1070464, 1271176, 1322656, 1570654, 2140928, 2542352, 2645312, 3141308, 5084704, 5290624, 6282616, 10169408, 10581248, 12565232, 20338816, 25130464, 40677632, 50260928, 100521856, 201043712, 345667879, 691335758, 1382671516, 2765343032, 5530686064, 6567689701, 11061372128, 13135379402, 22122744256, 26270758804, 44245488512, 52541517608, 88490977024, 105083035216, 210166070432, 420332140864, 840664281728, 1681328563456]

約数ペア:

[(1, 1681328563456), (2, 840664281728), (4, 420332140864), (8, 210166070432), (16, 105083035216), (19, 88490977024), (32, 52541517608), (38, 44245488512), (64, 26270758804), (76, 22122744256), (128, 13135379402), (152, 11061372128), (256, 6567689701), (304, 5530686064), (608, 2765343032), (1216, 1382671516), (2432, 691335758), (4864, 345667879), (8363, 201043712), (16726, 100521856), (33452, 50260928), (41333, 40677632), (66904, 25130464), (82666, 20338816), (133808, 12565232), (158897, 10581248), (165332, 10169408), (267616, 6282616), (317794, 5290624), (330664, 5084704), (535232, 3141308), (635588, 2645312), (661328, 2542352), (785327, 2140928), (1070464, 1570654), (1271176, 1322656)]