200901220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{772697}}^1$

素因数の和:772719

約数の個数: 24

約数和(自身を含む): 454346424

約数和(自身を除く): 253445204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 772697, 1545394, 3090788, 3863485, 7726970, 10045061, 15453940, 20090122, 40180244, 50225305, 100450610, 200901220]

約数ペア:

[(1, 200901220), (2, 100450610), (4, 50225305), (5, 40180244), (10, 20090122), (13, 15453940), (20, 10045061), (26, 7726970), (52, 3863485), (65, 3090788), (130, 1545394), (260, 772697)]