28080585

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2087}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 54722304

約数和(自身を除く): 26641719

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 2087, 2691, 4485, 6261, 10435, 13455, 18783, 27131, 31305, 48001, 81393, 93915, 135655, 144003, 240005, 244179, 406965, 432009, 624013, 720015, 1220895, 1872039, 2160045, 3120065, 5616117, 9360195, 28080585]

約数ペア:

[(1, 28080585), (3, 9360195), (5, 5616117), (9, 3120065), (13, 2160045), (15, 1872039), (23, 1220895), (39, 720015), (45, 624013), (65, 432009), (69, 406965), (115, 244179), (117, 240005), (195, 144003), (207, 135655), (299, 93915), (345, 81393), (585, 48001), (897, 31305), (1035, 27131), (1495, 18783), (2087, 13455), (2691, 10435), (4485, 6261)]