641597168

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{57041}}^1$

素因数の和:57105

約数の個数: 40

約数和(自身を含む): 1343909520

約数和(自身を除く): 702312352

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 592, 703, 1406, 2812, 5624, 11248, 57041, 114082, 228164, 456328, 912656, 1083779, 2110517, 2167558, 4221034, 4335116, 8442068, 8670232, 16884136, 17340464, 33768272, 40099823, 80199646, 160399292, 320798584, 641597168]

約数ペア:

[(1, 641597168), (2, 320798584), (4, 160399292), (8, 80199646), (16, 40099823), (19, 33768272), (37, 17340464), (38, 16884136), (74, 8670232), (76, 8442068), (148, 4335116), (152, 4221034), (296, 2167558), (304, 2110517), (592, 1083779), (703, 912656), (1406, 456328), (2812, 228164), (5624, 114082), (11248, 57041)]