20249670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{457}}^1$

素因数の和:685

約数の個数: 64

約数和(自身を含む): 55927296

約数和(自身を除く): 35677626

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 211, 422, 457, 633, 914, 1055, 1266, 1371, 1477, 2110, 2285, 2742, 2954, 3165, 3199, 4431, 4570, 6330, 6398, 6855, 7385, 8862, 9597, 13710, 14770, 15995, 19194, 22155, 31990, 44310, 47985, 95970, 96427, 192854, 289281, 482135, 578562, 674989, 964270, 1349978, 1446405, 2024967, 2892810, 3374945, 4049934, 6749890, 10124835, 20249670]

約数ペア:

[(1, 20249670), (2, 10124835), (3, 6749890), (5, 4049934), (6, 3374945), (7, 2892810), (10, 2024967), (14, 1446405), (15, 1349978), (21, 964270), (30, 674989), (35, 578562), (42, 482135), (70, 289281), (105, 192854), (210, 96427), (211, 95970), (422, 47985), (457, 44310), (633, 31990), (914, 22155), (1055, 19194), (1266, 15995), (1371, 14770), (1477, 13710), (2110, 9597), (2285, 8862), (2742, 7385), (2954, 6855), (3165, 6398), (3199, 6330), (4431, 4570)]