20051536

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{929}}^1$

素因数の和:1027

約数の個数: 40

約数和(自身を含む): 41515200

約数和(自身を除く): 21463664

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 76, 142, 152, 284, 304, 568, 929, 1136, 1349, 1858, 2698, 3716, 5396, 7432, 10792, 14864, 17651, 21584, 35302, 65959, 70604, 131918, 141208, 263836, 282416, 527672, 1055344, 1253221, 2506442, 5012884, 10025768, 20051536]

約数ペア:

[(1, 20051536), (2, 10025768), (4, 5012884), (8, 2506442), (16, 1253221), (19, 1055344), (38, 527672), (71, 282416), (76, 263836), (142, 141208), (152, 131918), (284, 70604), (304, 65959), (568, 35302), (929, 21584), (1136, 17651), (1349, 14864), (1858, 10792), (2698, 7432), (3716, 5396)]