20349675

素因数分解:

$3^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{607}}^1$

素因数の和:772

約数の個数: 36

約数和(自身を含む): 36753600

約数和(自身を除く): 16403925

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 149, 225, 447, 607, 745, 1341, 1821, 2235, 3035, 3725, 5463, 6705, 9105, 11175, 15175, 27315, 33525, 45525, 90443, 136575, 271329, 452215, 813987, 1356645, 2261075, 4069935, 6783225, 20349675]

約数ペア:

[(1, 20349675), (3, 6783225), (5, 4069935), (9, 2261075), (15, 1356645), (25, 813987), (45, 452215), (75, 271329), (149, 136575), (225, 90443), (447, 45525), (607, 33525), (745, 27315), (1341, 15175), (1821, 11175), (2235, 9105), (3035, 6705), (3725, 5463)]