20779925

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:613

約数の個数: 24

約数和(自身を含む): 27319680

約数和(自身を除く): 6539755

約数列:

[1, 5, 23, 25, 71, 115, 355, 509, 575, 1633, 1775, 2545, 8165, 11707, 12725, 36139, 40825, 58535, 180695, 292675, 831197, 903475, 4155985, 20779925]

約数ペア:

[(1, 20779925), (5, 4155985), (23, 903475), (25, 831197), (71, 292675), (115, 180695), (355, 58535), (509, 40825), (575, 36139), (1633, 12725), (1775, 11707), (2545, 8165)]