157079680

素因数分解:

$2^7\times 5^1\times {\mathrm{245437}}^1$

素因数の和:245456

約数の個数: 32

約数和(自身を含む): 375520140

約数和(自身を除く): 218440460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 245437, 490874, 981748, 1227185, 1963496, 2454370, 3926992, 4908740, 7853984, 9817480, 15707968, 19634960, 31415936, 39269920, 78539840, 157079680]

約数ペア:

[(1, 157079680), (2, 78539840), (4, 39269920), (5, 31415936), (8, 19634960), (10, 15707968), (16, 9817480), (20, 7853984), (32, 4908740), (40, 3926992), (64, 2454370), (80, 1963496), (128, 1227185), (160, 981748), (320, 490874), (640, 245437)]