20091900520

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{967}}^1\times {\mathrm{1931}}^1$

素因数の和:3178

約数の個数: 64

約数和(自身を含む): 45445276800

約数和(自身を除く): 25353376280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 967, 1076, 1345, 1931, 1934, 2152, 2690, 3862, 3868, 4835, 5380, 7724, 7736, 9655, 9670, 10760, 15448, 19310, 19340, 38620, 38680, 77240, 260123, 519439, 520246, 1038878, 1040492, 1300615, 1867277, 2077756, 2080984, 2597195, 2601230, 3734554, 4155512, 5194390, 5202460, 7469108, 9336385, 10388780, 10404920, 14938216, 18672770, 20777560, 37345540, 74691080, 502297513, 1004595026, 2009190052, 2511487565, 4018380104, 5022975130, 10045950260, 20091900520]

約数ペア:

[(1, 20091900520), (2, 10045950260), (4, 5022975130), (5, 4018380104), (8, 2511487565), (10, 2009190052), (20, 1004595026), (40, 502297513), (269, 74691080), (538, 37345540), (967, 20777560), (1076, 18672770), (1345, 14938216), (1931, 10404920), (1934, 10388780), (2152, 9336385), (2690, 7469108), (3862, 5202460), (3868, 5194390), (4835, 4155512), (5380, 3734554), (7724, 2601230), (7736, 2597195), (9655, 2080984), (9670, 2077756), (10760, 1867277), (15448, 1300615), (19310, 1040492), (19340, 1038878), (38620, 520246), (38680, 519439), (77240, 260123)]