390106240

素因数分解:

$2^7\times 5^1\times {\mathrm{609541}}^1$

素因数の和:609560

約数の個数: 32

約数和(自身を含む): 932599260

約数和(自身を除く): 542493020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 609541, 1219082, 2438164, 3047705, 4876328, 6095410, 9752656, 12190820, 19505312, 24381640, 39010624, 48763280, 78021248, 97526560, 195053120, 390106240]

約数ペア:

[(1, 390106240), (2, 195053120), (4, 97526560), (5, 78021248), (8, 48763280), (10, 39010624), (16, 24381640), (20, 19505312), (32, 12190820), (40, 9752656), (64, 6095410), (80, 4876328), (128, 3047705), (160, 2438164), (320, 1219082), (640, 609541)]