71287725

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 122492160

約数和(自身を除く): 51204435

約数列:

[1, 3, 5, 15, 25, 41, 75, 97, 123, 205, 239, 291, 485, 615, 717, 1025, 1195, 1455, 2425, 3075, 3585, 3977, 5975, 7275, 9799, 11931, 17925, 19885, 23183, 29397, 48995, 59655, 69549, 99425, 115915, 146985, 244975, 298275, 347745, 579575, 734925, 950503, 1738725, 2851509, 4752515, 14257545, 23762575, 71287725]

約数ペア:

[(1, 71287725), (3, 23762575), (5, 14257545), (15, 4752515), (25, 2851509), (41, 1738725), (75, 950503), (97, 734925), (123, 579575), (205, 347745), (239, 298275), (291, 244975), (485, 146985), (615, 115915), (717, 99425), (1025, 69549), (1195, 59655), (1455, 48995), (2425, 29397), (3075, 23183), (3585, 19885), (3977, 17925), (5975, 11931), (7275, 9799)]