990974840

素因数分解:

$2^3\times 5^1\times {\mathrm{24774371}}^1$

素因数の和:24774382

約数の個数: 16

約数和(自身を含む): 2229693480

約数和(自身を除く): 1238718640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 24774371, 49548742, 99097484, 123871855, 198194968, 247743710, 495487420, 990974840]

約数ペア:

[(1, 990974840), (2, 495487420), (4, 247743710), (5, 198194968), (8, 123871855), (10, 99097484), (20, 49548742), (40, 24774371)]