4019665

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:169

約数の個数: 24

約数和(自身を含む): 5375808

約数和(自身を除く): 1356143

約数列:

[1, 5, 13, 65, 67, 71, 169, 335, 355, 845, 871, 923, 4355, 4615, 4757, 11323, 11999, 23785, 56615, 59995, 61841, 309205, 803933, 4019665]

約数ペア:

[(1, 4019665), (5, 803933), (13, 309205), (65, 61841), (67, 59995), (71, 56615), (169, 23785), (335, 11999), (355, 11323), (845, 4757), (871, 4615), (923, 4355)]