208342395

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3947}}^1$

素因数の和:4001

約数の個数: 64

約数和(自身を含む): 409328640

約数和(自身を除く): 200986245

約数列:

[1, 3, 5, 9, 15, 17, 23, 27, 45, 51, 69, 85, 115, 135, 153, 207, 255, 345, 391, 459, 621, 765, 1035, 1173, 1955, 2295, 3105, 3519, 3947, 5865, 10557, 11841, 17595, 19735, 35523, 52785, 59205, 67099, 90781, 106569, 177615, 201297, 272343, 335495, 453905, 532845, 603891, 817029, 1006485, 1361715, 1543277, 1811673, 2451087, 3019455, 4085145, 4629831, 7716385, 9058365, 12255435, 13889493, 23149155, 41668479, 69447465, 208342395]

約数ペア:

[(1, 208342395), (3, 69447465), (5, 41668479), (9, 23149155), (15, 13889493), (17, 12255435), (23, 9058365), (27, 7716385), (45, 4629831), (51, 4085145), (69, 3019455), (85, 2451087), (115, 1811673), (135, 1543277), (153, 1361715), (207, 1006485), (255, 817029), (345, 603891), (391, 532845), (459, 453905), (621, 335495), (765, 272343), (1035, 201297), (1173, 177615), (1955, 106569), (2295, 90781), (3105, 67099), (3519, 59205), (3947, 52785), (5865, 35523), (10557, 19735), (11841, 17595)]