17885980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18251}}^1$

素因数の和:18274

約数の個数: 36

約数和(自身を含む): 43695288

約数和(自身を除く): 25809308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18251, 36502, 73004, 91255, 127757, 182510, 255514, 365020, 511028, 638785, 894299, 1277570, 1788598, 2555140, 3577196, 4471495, 8942990, 17885980]

約数ペア:

[(1, 17885980), (2, 8942990), (4, 4471495), (5, 3577196), (7, 2555140), (10, 1788598), (14, 1277570), (20, 894299), (28, 638785), (35, 511028), (49, 365020), (70, 255514), (98, 182510), (140, 127757), (196, 91255), (245, 73004), (490, 36502), (980, 18251)]