778515

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:139

約数の個数: 32

約数和(自身を含む): 1368576

約数和(自身を除く): 590061

約数列:

[1, 3, 5, 15, 17, 43, 51, 71, 85, 129, 213, 215, 255, 355, 645, 731, 1065, 1207, 2193, 3053, 3621, 3655, 6035, 9159, 10965, 15265, 18105, 45795, 51901, 155703, 259505, 778515]

約数ペア:

[(1, 778515), (3, 259505), (5, 155703), (15, 51901), (17, 45795), (43, 18105), (51, 15265), (71, 10965), (85, 9159), (129, 6035), (213, 3655), (215, 3621), (255, 3053), (355, 2193), (645, 1207), (731, 1065)]