20190896

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1289}}^1$

素因数の和:1397

約数の個数: 40

約数和(自身を含む): 43189200

約数和(自身を除く): 22998304

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 89, 176, 178, 356, 712, 979, 1289, 1424, 1958, 2578, 3916, 5156, 7832, 10312, 14179, 15664, 20624, 28358, 56716, 113432, 114721, 226864, 229442, 458884, 917768, 1261931, 1835536, 2523862, 5047724, 10095448, 20190896]

約数ペア:

[(1, 20190896), (2, 10095448), (4, 5047724), (8, 2523862), (11, 1835536), (16, 1261931), (22, 917768), (44, 458884), (88, 229442), (89, 226864), (176, 114721), (178, 113432), (356, 56716), (712, 28358), (979, 20624), (1289, 15664), (1424, 14179), (1958, 10312), (2578, 7832), (3916, 5156)]