309020656

素因数分解:

$2^4\times 7^2\times {\mathrm{613}}^1\times {\mathrm{643}}^1$

素因数の和:1278

約数の個数: 60

約数和(自身を含む): 698700072

約数和(自身を除く): 389679416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 613, 643, 784, 1226, 1286, 2452, 2572, 4291, 4501, 4904, 5144, 8582, 9002, 9808, 10288, 17164, 18004, 30037, 31507, 34328, 36008, 60074, 63014, 68656, 72016, 120148, 126028, 240296, 252056, 394159, 480592, 504112, 788318, 1576636, 2759113, 3153272, 5518226, 6306544, 11036452, 19313791, 22072904, 38627582, 44145808, 77255164, 154510328, 309020656]

約数ペア:

[(1, 309020656), (2, 154510328), (4, 77255164), (7, 44145808), (8, 38627582), (14, 22072904), (16, 19313791), (28, 11036452), (49, 6306544), (56, 5518226), (98, 3153272), (112, 2759113), (196, 1576636), (392, 788318), (613, 504112), (643, 480592), (784, 394159), (1226, 252056), (1286, 240296), (2452, 126028), (2572, 120148), (4291, 72016), (4501, 68656), (4904, 63014), (5144, 60074), (8582, 36008), (9002, 34328), (9808, 31507), (10288, 30037), (17164, 18004)]