20910221120

素因数分解:

$2^6\times 5^1\times {\mathrm{65344441}}^1$

素因数の和:65344458

約数の個数: 28

約数和(自身を含む): 49792464804

約数和(自身を除く): 28882243684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65344441, 130688882, 261377764, 326722205, 522755528, 653444410, 1045511056, 1306888820, 2091022112, 2613777640, 4182044224, 5227555280, 10455110560, 20910221120]

約数ペア:

[(1, 20910221120), (2, 10455110560), (4, 5227555280), (5, 4182044224), (8, 2613777640), (10, 2091022112), (16, 1306888820), (20, 1045511056), (32, 653444410), (40, 522755528), (64, 326722205), (80, 261377764), (160, 130688882), (320, 65344441)]