208099509

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 290304000

約数和(自身を除く): 82204491

約数列:

[1, 3, 71, 79, 83, 149, 213, 237, 249, 447, 5609, 5893, 6557, 10579, 11771, 12367, 16827, 17679, 19671, 31737, 35313, 37101, 465547, 835741, 878057, 976993, 1396641, 2507223, 2634171, 2930979, 69366503, 208099509]

約数ペア:

[(1, 208099509), (3, 69366503), (71, 2930979), (79, 2634171), (83, 2507223), (149, 1396641), (213, 976993), (237, 878057), (249, 835741), (447, 465547), (5609, 37101), (5893, 35313), (6557, 31737), (10579, 19671), (11771, 17679), (12367, 16827)]