20405728864

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{914891}}^1$

素因数の和:914959

約数の個数: 48

約数和(自身を含む): 43574476176

約数和(自身を除く): 23168747312

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 68, 82, 136, 164, 272, 328, 544, 656, 697, 1312, 1394, 2788, 5576, 11152, 22304, 914891, 1829782, 3659564, 7319128, 14638256, 15553147, 29276512, 31106294, 37510531, 62212588, 75021062, 124425176, 150042124, 248850352, 300084248, 497700704, 600168496, 637679027, 1200336992, 1275358054, 2550716108, 5101432216, 10202864432, 20405728864]

約数ペア:

[(1, 20405728864), (2, 10202864432), (4, 5101432216), (8, 2550716108), (16, 1275358054), (17, 1200336992), (32, 637679027), (34, 600168496), (41, 497700704), (68, 300084248), (82, 248850352), (136, 150042124), (164, 124425176), (272, 75021062), (328, 62212588), (544, 37510531), (656, 31106294), (697, 29276512), (1312, 15553147), (1394, 14638256), (2788, 7319128), (5576, 3659564), (11152, 1829782), (22304, 914891)]