201881205

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{1619}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 373014720

約数和(自身を除く): 171133515

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 163, 255, 489, 765, 815, 1467, 1619, 2445, 2771, 4857, 7335, 8095, 8313, 13855, 14571, 24285, 24939, 27523, 41565, 72855, 82569, 124695, 137615, 247707, 263897, 412845, 791691, 1238535, 1319485, 2375073, 3958455, 4486249, 11875365, 13458747, 22431245, 40376241, 67293735, 201881205]

約数ペア:

[(1, 201881205), (3, 67293735), (5, 40376241), (9, 22431245), (15, 13458747), (17, 11875365), (45, 4486249), (51, 3958455), (85, 2375073), (153, 1319485), (163, 1238535), (255, 791691), (489, 412845), (765, 263897), (815, 247707), (1467, 137615), (1619, 124695), (2445, 82569), (2771, 72855), (4857, 41565), (7335, 27523), (8095, 24939), (8313, 24285), (13855, 14571)]