20059988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^2$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 39130812

約数和(自身を除く): 19070824

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 97, 164, 194, 388, 533, 1066, 1261, 2132, 2522, 3977, 5044, 7954, 9409, 15908, 18818, 37636, 51701, 103402, 122317, 206804, 244634, 385769, 489268, 771538, 1543076, 5014997, 10029994, 20059988]

約数ペア:

[(1, 20059988), (2, 10029994), (4, 5014997), (13, 1543076), (26, 771538), (41, 489268), (52, 385769), (82, 244634), (97, 206804), (164, 122317), (194, 103402), (388, 51701), (533, 37636), (1066, 18818), (1261, 15908), (2132, 9409), (2522, 7954), (3977, 5044)]