20768085

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 39207168

約数和(自身を除く): 18439083

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 131, 195, 271, 393, 585, 655, 813, 1179, 1355, 1703, 1965, 2439, 3523, 4065, 5109, 5895, 8515, 10569, 12195, 15327, 17615, 25545, 31707, 35501, 52845, 76635, 106503, 158535, 177505, 319509, 461513, 532515, 1384539, 1597545, 2307565, 4153617, 6922695, 20768085]

約数ペア:

[(1, 20768085), (3, 6922695), (5, 4153617), (9, 2307565), (13, 1597545), (15, 1384539), (39, 532515), (45, 461513), (65, 319509), (117, 177505), (131, 158535), (195, 106503), (271, 76635), (393, 52845), (585, 35501), (655, 31707), (813, 25545), (1179, 17615), (1355, 15327), (1703, 12195), (1965, 10569), (2439, 8515), (3523, 5895), (4065, 5109)]