178142337

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 298142208

約数和(自身を除く): 119999871

約数列:

[1, 3, 9, 17, 23, 31, 51, 69, 71, 93, 153, 207, 213, 279, 391, 527, 529, 639, 713, 1173, 1207, 1581, 1587, 1633, 2139, 2201, 3519, 3621, 4743, 4761, 4899, 6417, 6603, 8993, 10863, 12121, 14697, 16399, 19809, 26979, 27761, 36363, 37417, 37559, 49197, 50623, 80937, 83283, 109089, 112251, 112677, 147591, 151869, 249849, 278783, 336753, 338031, 455607, 638503, 836349, 860591, 1164329, 1915509, 2509047, 2581773, 3492987, 5746527, 7745319, 10478961, 19793593, 59380779, 178142337]

約数ペア:

[(1, 178142337), (3, 59380779), (9, 19793593), (17, 10478961), (23, 7745319), (31, 5746527), (51, 3492987), (69, 2581773), (71, 2509047), (93, 1915509), (153, 1164329), (207, 860591), (213, 836349), (279, 638503), (391, 455607), (527, 338031), (529, 336753), (639, 278783), (713, 249849), (1173, 151869), (1207, 147591), (1581, 112677), (1587, 112251), (1633, 109089), (2139, 83283), (2201, 80937), (3519, 50623), (3621, 49197), (4743, 37559), (4761, 37417), (4899, 36363), (6417, 27761), (6603, 26979), (8993, 19809), (10863, 16399), (12121, 14697)]