20809399010

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1\times {\mathrm{19661}}^1$

素因数の和:21718

約数の個数: 32

約数和(自身を含む): 38184705072

約数和(自身を除く): 17375306062

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 1997, 3994, 9985, 19661, 19970, 39322, 98305, 105841, 196610, 211682, 529205, 1042033, 1058410, 2084066, 5210165, 10420330, 39263017, 78526034, 196315085, 392630170, 2080939901, 4161879802, 10404699505, 20809399010]

約数ペア:

[(1, 20809399010), (2, 10404699505), (5, 4161879802), (10, 2080939901), (53, 392630170), (106, 196315085), (265, 78526034), (530, 39263017), (1997, 10420330), (3994, 5210165), (9985, 2084066), (19661, 1058410), (19970, 1042033), (39322, 529205), (98305, 211682), (105841, 196610)]