204909890

素因数分解:

$2^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{44449}}^1$

素因数の和:44917

約数の個数: 16

約数和(自身を含む): 369646200

約数和(自身を除く): 164736310

約数列:

[1, 2, 5, 10, 461, 922, 2305, 4610, 44449, 88898, 222245, 444490, 20490989, 40981978, 102454945, 204909890]

約数ペア:

[(1, 204909890), (2, 102454945), (5, 40981978), (10, 20490989), (461, 444490), (922, 222245), (2305, 88898), (4610, 44449)]