126321920

素因数分解:

$2^8\times 5^1\times {\mathrm{98689}}^1$

素因数の和:98710

約数の個数: 36

約数和(自身を含む): 302583540

約数和(自身を除く): 176261620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 98689, 197378, 394756, 493445, 789512, 986890, 1579024, 1973780, 3158048, 3947560, 6316096, 7895120, 12632192, 15790240, 25264384, 31580480, 63160960, 126321920]

約数ペア:

[(1, 126321920), (2, 63160960), (4, 31580480), (5, 25264384), (8, 15790240), (10, 12632192), (16, 7895120), (20, 6316096), (32, 3947560), (40, 3158048), (64, 1973780), (80, 1579024), (128, 986890), (160, 789512), (256, 493445), (320, 394756), (640, 197378), (1280, 98689)]