20783832485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{67217}}^1$

素因数の和:67373

約数の個数: 32

約数和(自身を含む): 27644343552

約数和(自身を除く): 6860511067

約数列:

[1, 5, 13, 65, 67, 71, 335, 355, 871, 923, 4355, 4615, 4757, 23785, 61841, 67217, 309205, 336085, 873821, 4369105, 4503539, 4772407, 22517695, 23862035, 58546007, 62041291, 292730035, 310206455, 319751269, 1598756345, 4156766497, 20783832485]

約数ペア:

[(1, 20783832485), (5, 4156766497), (13, 1598756345), (65, 319751269), (67, 310206455), (71, 292730035), (335, 62041291), (355, 58546007), (871, 23862035), (923, 22517695), (4355, 4772407), (4615, 4503539), (4757, 4369105), (23785, 873821), (61841, 336085), (67217, 309205)]