20736045

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 39604032

約数和(自身を除く): 18867987

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 163, 165, 257, 489, 495, 771, 815, 1285, 1467, 1793, 2313, 2445, 2827, 3855, 5379, 7335, 8481, 8965, 11565, 14135, 16137, 25443, 26895, 41891, 42405, 80685, 125673, 127215, 209455, 377019, 460801, 628365, 1382403, 1885095, 2304005, 4147209, 6912015, 20736045]

約数ペア:

[(1, 20736045), (3, 6912015), (5, 4147209), (9, 2304005), (11, 1885095), (15, 1382403), (33, 628365), (45, 460801), (55, 377019), (99, 209455), (163, 127215), (165, 125673), (257, 80685), (489, 42405), (495, 41891), (771, 26895), (815, 25443), (1285, 16137), (1467, 14135), (1793, 11565), (2313, 8965), (2445, 8481), (2827, 7335), (3855, 5379)]