388671980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1022821}}^1$

素因数の和:1022849

約数の個数: 24

約数和(自身を含む): 859170480

約数和(自身を除く): 470498500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1022821, 2045642, 4091284, 5114105, 10228210, 19433599, 20456420, 38867198, 77734396, 97167995, 194335990, 388671980]

約数ペア:

[(1, 388671980), (2, 194335990), (4, 97167995), (5, 77734396), (10, 38867198), (19, 20456420), (20, 19433599), (38, 10228210), (76, 5114105), (95, 4091284), (190, 2045642), (380, 1022821)]