19941220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76697}}^1$

素因数の和:76719

約数の個数: 24

約数和(自身を含む): 45098424

約数和(自身を除く): 25157204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76697, 153394, 306788, 383485, 766970, 997061, 1533940, 1994122, 3988244, 4985305, 9970610, 19941220]

約数ペア:

[(1, 19941220), (2, 9970610), (4, 4985305), (5, 3988244), (10, 1994122), (13, 1533940), (20, 997061), (26, 766970), (52, 383485), (65, 306788), (130, 153394), (260, 76697)]