20701035

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 18697365

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 59, 69, 113, 115, 135, 177, 207, 295, 339, 345, 531, 565, 621, 885, 1017, 1035, 1357, 1593, 1695, 2599, 2655, 3051, 3105, 4071, 5085, 6667, 6785, 7797, 7965, 12213, 12995, 15255, 20001, 20355, 23391, 33335, 36639, 38985, 60003, 61065, 70173, 100005, 116955, 153341, 180009, 183195, 300015, 350865, 460023, 766705, 900045, 1380069, 2300115, 4140207, 6900345, 20701035]

約数ペア:

[(1, 20701035), (3, 6900345), (5, 4140207), (9, 2300115), (15, 1380069), (23, 900045), (27, 766705), (45, 460023), (59, 350865), (69, 300015), (113, 183195), (115, 180009), (135, 153341), (177, 116955), (207, 100005), (295, 70173), (339, 61065), (345, 60003), (531, 38985), (565, 36639), (621, 33335), (885, 23391), (1017, 20355), (1035, 20001), (1357, 15255), (1593, 12995), (1695, 12213), (2599, 7965), (2655, 7797), (3051, 6785), (3105, 6667), (4071, 5085)]