205329586

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 395642880

約数和(自身を除く): 190313294

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 89, 142, 154, 178, 211, 422, 497, 623, 781, 979, 994, 1246, 1477, 1562, 1958, 2321, 2954, 4642, 5467, 6319, 6853, 10934, 12638, 13706, 14981, 16247, 18779, 29962, 32494, 37558, 44233, 69509, 88466, 104867, 131453, 139018, 164791, 206569, 209734, 262906, 329582, 413138, 486563, 973126, 1153537, 1333309, 1445983, 2307074, 2666618, 2891966, 9333163, 14666399, 18666326, 29332798, 102664793, 205329586]

約数ペア:

[(1, 205329586), (2, 102664793), (7, 29332798), (11, 18666326), (14, 14666399), (22, 9333163), (71, 2891966), (77, 2666618), (89, 2307074), (142, 1445983), (154, 1333309), (178, 1153537), (211, 973126), (422, 486563), (497, 413138), (623, 329582), (781, 262906), (979, 209734), (994, 206569), (1246, 164791), (1477, 139018), (1562, 131453), (1958, 104867), (2321, 88466), (2954, 69509), (4642, 44233), (5467, 37558), (6319, 32494), (6853, 29962), (10934, 18779), (12638, 16247), (13706, 14981)]