20216949980

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1814807}}^1$

素因数の和:1815373

約数の個数: 24

約数和(自身を含む): 42531840288

約数和(自身を除く): 22314890308

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2785, 5570, 11140, 1814807, 3629614, 7259228, 9074035, 18148070, 36296140, 1010847499, 2021694998, 4043389996, 5054237495, 10108474990, 20216949980]

約数ペア:

[(1, 20216949980), (2, 10108474990), (4, 5054237495), (5, 4043389996), (10, 2021694998), (20, 1010847499), (557, 36296140), (1114, 18148070), (2228, 9074035), (2785, 7259228), (5570, 3629614), (11140, 1814807)]