20506510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2917}}^1$

素因数の和:2980

約数の個数: 32

約数和(自身を含む): 39918240

約数和(自身を除く): 19411730

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 370, 703, 1406, 2917, 3515, 5834, 7030, 14585, 29170, 55423, 107929, 110846, 215858, 277115, 539645, 554230, 1079290, 2050651, 4101302, 10253255, 20506510]

約数ペア:

[(1, 20506510), (2, 10253255), (5, 4101302), (10, 2050651), (19, 1079290), (37, 554230), (38, 539645), (74, 277115), (95, 215858), (185, 110846), (190, 107929), (370, 55423), (703, 29170), (1406, 14585), (2917, 7030), (3515, 5834)]