20615248

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{467}}^1$

素因数の和:595

約数の個数: 40

約数和(自身を含む): 41783040

約数和(自身を除く): 21167792

約数列:

[1, 2, 4, 8, 16, 31, 62, 89, 124, 178, 248, 356, 467, 496, 712, 934, 1424, 1868, 2759, 3736, 5518, 7472, 11036, 14477, 22072, 28954, 41563, 44144, 57908, 83126, 115816, 166252, 231632, 332504, 665008, 1288453, 2576906, 5153812, 10307624, 20615248]

約数ペア:

[(1, 20615248), (2, 10307624), (4, 5153812), (8, 2576906), (16, 1288453), (31, 665008), (62, 332504), (89, 231632), (124, 166252), (178, 115816), (248, 83126), (356, 57908), (467, 44144), (496, 41563), (712, 28954), (934, 22072), (1424, 14477), (1868, 11036), (2759, 7472), (3736, 5518)]