202066840

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{25643}}^1$

素因数の和:25851

約数の個数: 32

約数和(自身を含む): 456976080

約数和(自身を除く): 254909240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 25643, 51286, 102572, 128215, 205144, 256430, 512860, 1025720, 5051671, 10103342, 20206684, 25258355, 40413368, 50516710, 101033420, 202066840]

約数ペア:

[(1, 202066840), (2, 101033420), (4, 50516710), (5, 40413368), (8, 25258355), (10, 20206684), (20, 10103342), (40, 5051671), (197, 1025720), (394, 512860), (788, 256430), (985, 205144), (1576, 128215), (1970, 102572), (3940, 51286), (7880, 25643)]