31520080

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:244

約数の個数: 80

約数和(自身を含む): 76495104

約数和(自身を除く): 44975024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 83, 94, 101, 166, 188, 202, 235, 332, 376, 404, 415, 470, 505, 664, 752, 808, 830, 940, 1010, 1328, 1616, 1660, 1880, 2020, 3320, 3760, 3901, 4040, 4747, 6640, 7802, 8080, 8383, 9494, 15604, 16766, 18988, 19505, 23735, 31208, 33532, 37976, 39010, 41915, 47470, 62416, 67064, 75952, 78020, 83830, 94940, 134128, 156040, 167660, 189880, 312080, 335320, 379760, 394001, 670640, 788002, 1576004, 1970005, 3152008, 3940010, 6304016, 7880020, 15760040, 31520080]

約数ペア:

[(1, 31520080), (2, 15760040), (4, 7880020), (5, 6304016), (8, 3940010), (10, 3152008), (16, 1970005), (20, 1576004), (40, 788002), (47, 670640), (80, 394001), (83, 379760), (94, 335320), (101, 312080), (166, 189880), (188, 167660), (202, 156040), (235, 134128), (332, 94940), (376, 83830), (404, 78020), (415, 75952), (470, 67064), (505, 62416), (664, 47470), (752, 41915), (808, 39010), (830, 37976), (940, 33532), (1010, 31208), (1328, 23735), (1616, 19505), (1660, 18988), (1880, 16766), (2020, 15604), (3320, 9494), (3760, 8383), (3901, 8080), (4040, 7802), (4747, 6640)]