291228920

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{1597}}^1$

素因数の和:1752

約数の個数: 64

約数和(自身を含む): 676529280

約数和(自身を除く): 385300360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 97, 188, 194, 235, 376, 388, 470, 485, 776, 940, 970, 1597, 1880, 1940, 3194, 3880, 4559, 6388, 7985, 9118, 12776, 15970, 18236, 22795, 31940, 36472, 45590, 63880, 75059, 91180, 150118, 154909, 182360, 300236, 309818, 375295, 600472, 619636, 750590, 774545, 1239272, 1501180, 1549090, 3002360, 3098180, 6196360, 7280723, 14561446, 29122892, 36403615, 58245784, 72807230, 145614460, 291228920]

約数ペア:

[(1, 291228920), (2, 145614460), (4, 72807230), (5, 58245784), (8, 36403615), (10, 29122892), (20, 14561446), (40, 7280723), (47, 6196360), (94, 3098180), (97, 3002360), (188, 1549090), (194, 1501180), (235, 1239272), (376, 774545), (388, 750590), (470, 619636), (485, 600472), (776, 375295), (940, 309818), (970, 300236), (1597, 182360), (1880, 154909), (1940, 150118), (3194, 91180), (3880, 75059), (4559, 63880), (6388, 45590), (7985, 36472), (9118, 31940), (12776, 22795), (15970, 18236)]