20853894016

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{641}}^1\times {\mathrm{14951}}^1$

素因数の和:15623

約数の個数: 64

約数和(自身を含む): 44060254560

約数和(自身を除く): 23206360544

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 544, 641, 1088, 1282, 2176, 2564, 5128, 10256, 10897, 14951, 20512, 21794, 29902, 41024, 43588, 59804, 82048, 87176, 119608, 174352, 239216, 254167, 348704, 478432, 508334, 697408, 956864, 1016668, 1394816, 1913728, 2033336, 4066672, 8133344, 9583591, 16266688, 19167182, 32533376, 38334364, 76668728, 153337456, 162921047, 306674912, 325842094, 613349824, 651684188, 1226699648, 1303368376, 2606736752, 5213473504, 10426947008, 20853894016]

約数ペア:

[(1, 20853894016), (2, 10426947008), (4, 5213473504), (8, 2606736752), (16, 1303368376), (17, 1226699648), (32, 651684188), (34, 613349824), (64, 325842094), (68, 306674912), (128, 162921047), (136, 153337456), (272, 76668728), (544, 38334364), (641, 32533376), (1088, 19167182), (1282, 16266688), (2176, 9583591), (2564, 8133344), (5128, 4066672), (10256, 2033336), (10897, 1913728), (14951, 1394816), (20512, 1016668), (21794, 956864), (29902, 697408), (41024, 508334), (43588, 478432), (59804, 348704), (82048, 254167), (87176, 239216), (119608, 174352)]