257942392

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{18541}}^1$

素因数の和:18631

約数の個数: 32

約数和(自身を含む): 507309120

約数和(自身を除く): 249366728

約数列:

[1, 2, 4, 8, 37, 47, 74, 94, 148, 188, 296, 376, 1739, 3478, 6956, 13912, 18541, 37082, 74164, 148328, 686017, 871427, 1372034, 1742854, 2744068, 3485708, 5488136, 6971416, 32242799, 64485598, 128971196, 257942392]

約数ペア:

[(1, 257942392), (2, 128971196), (4, 64485598), (8, 32242799), (37, 6971416), (47, 5488136), (74, 3485708), (94, 2744068), (148, 1742854), (188, 1372034), (296, 871427), (376, 686017), (1739, 148328), (3478, 74164), (6956, 37082), (13912, 18541)]