278928112

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{16811}}^1$

素因数の和:16897

約数の個数: 40

約数和(自身を含む): 581627952

約数和(自身を除く): 302699840

約数列:

[1, 2, 4, 8, 16, 17, 34, 61, 68, 122, 136, 244, 272, 488, 976, 1037, 2074, 4148, 8296, 16592, 16811, 33622, 67244, 134488, 268976, 285787, 571574, 1025471, 1143148, 2050942, 2286296, 4101884, 4572592, 8203768, 16407536, 17433007, 34866014, 69732028, 139464056, 278928112]

約数ペア:

[(1, 278928112), (2, 139464056), (4, 69732028), (8, 34866014), (16, 17433007), (17, 16407536), (34, 8203768), (61, 4572592), (68, 4101884), (122, 2286296), (136, 2050942), (244, 1143148), (272, 1025471), (488, 571574), (976, 285787), (1037, 268976), (2074, 134488), (4148, 67244), (8296, 33622), (16592, 16811)]