20396512

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:779

約数の個数: 48

約数和(自身を含む): 42940800

約数和(自身を除く): 22544288

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 116, 124, 232, 248, 464, 496, 709, 899, 928, 992, 1418, 1798, 2836, 3596, 5672, 7192, 11344, 14384, 20561, 21979, 22688, 28768, 41122, 43958, 82244, 87916, 164488, 175832, 328976, 351664, 637391, 657952, 703328, 1274782, 2549564, 5099128, 10198256, 20396512]

約数ペア:

[(1, 20396512), (2, 10198256), (4, 5099128), (8, 2549564), (16, 1274782), (29, 703328), (31, 657952), (32, 637391), (58, 351664), (62, 328976), (116, 175832), (124, 164488), (232, 87916), (248, 82244), (464, 43958), (496, 41122), (709, 28768), (899, 22688), (928, 21979), (992, 20561), (1418, 14384), (1798, 11344), (2836, 7192), (3596, 5672)]