28491330

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{643}}^1$

素因数の和:871

約数の個数: 64

約数和(自身を含む): 78640128

約数和(自身を除く): 50148798

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 211, 422, 633, 643, 1055, 1266, 1286, 1477, 1929, 2110, 2954, 3165, 3215, 3858, 4431, 4501, 6330, 6430, 7385, 8862, 9002, 9645, 13503, 14770, 19290, 22155, 22505, 27006, 44310, 45010, 67515, 135030, 135673, 271346, 407019, 678365, 814038, 949711, 1356730, 1899422, 2035095, 2849133, 4070190, 4748555, 5698266, 9497110, 14245665, 28491330]

約数ペア:

[(1, 28491330), (2, 14245665), (3, 9497110), (5, 5698266), (6, 4748555), (7, 4070190), (10, 2849133), (14, 2035095), (15, 1899422), (21, 1356730), (30, 949711), (35, 814038), (42, 678365), (70, 407019), (105, 271346), (210, 135673), (211, 135030), (422, 67515), (633, 45010), (643, 44310), (1055, 27006), (1266, 22505), (1286, 22155), (1477, 19290), (1929, 14770), (2110, 13503), (2954, 9645), (3165, 9002), (3215, 8862), (3858, 7385), (4431, 6430), (4501, 6330)]