213863175

素因数分解:

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

素因数の和:393

約数の個数: 72

約数和(自身を含む): 398099520

約数和(自身を除く): 184236345

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 97, 123, 205, 225, 239, 291, 369, 485, 615, 717, 873, 1025, 1195, 1455, 1845, 2151, 2425, 3075, 3585, 3977, 4365, 5975, 7275, 9225, 9799, 10755, 11931, 17925, 19885, 21825, 23183, 29397, 35793, 48995, 53775, 59655, 69549, 88191, 99425, 115915, 146985, 178965, 208647, 244975, 298275, 347745, 440955, 579575, 734925, 894825, 950503, 1043235, 1738725, 2204775, 2851509, 4752515, 5216175, 8554527, 14257545, 23762575, 42772635, 71287725, 213863175]

約数ペア:

[(1, 213863175), (3, 71287725), (5, 42772635), (9, 23762575), (15, 14257545), (25, 8554527), (41, 5216175), (45, 4752515), (75, 2851509), (97, 2204775), (123, 1738725), (205, 1043235), (225, 950503), (239, 894825), (291, 734925), (369, 579575), (485, 440955), (615, 347745), (717, 298275), (873, 244975), (1025, 208647), (1195, 178965), (1455, 146985), (1845, 115915), (2151, 99425), (2425, 88191), (3075, 69549), (3585, 59655), (3977, 53775), (4365, 48995), (5975, 35793), (7275, 29397), (9225, 23183), (9799, 21825), (10755, 19885), (11931, 17925)]