20165728

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{971}}^1$

素因数の和:1051

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 23924192

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 59, 88, 118, 176, 236, 352, 472, 649, 944, 971, 1298, 1888, 1942, 2596, 3884, 5192, 7768, 10384, 10681, 15536, 20768, 21362, 31072, 42724, 57289, 85448, 114578, 170896, 229156, 341792, 458312, 630179, 916624, 1260358, 1833248, 2520716, 5041432, 10082864, 20165728]

約数ペア:

[(1, 20165728), (2, 10082864), (4, 5041432), (8, 2520716), (11, 1833248), (16, 1260358), (22, 916624), (32, 630179), (44, 458312), (59, 341792), (88, 229156), (118, 170896), (176, 114578), (236, 85448), (352, 57289), (472, 42724), (649, 31072), (944, 21362), (971, 20768), (1298, 15536), (1888, 10681), (1942, 10384), (2596, 7768), (3884, 5192)]