8242745

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 11943936

約数和(自身を除く): 3701191

約数列:

[1, 5, 7, 31, 35, 71, 107, 155, 217, 355, 497, 535, 749, 1085, 2201, 2485, 3317, 3745, 7597, 11005, 15407, 16585, 23219, 37985, 53179, 77035, 116095, 235507, 265895, 1177535, 1648549, 8242745]

約数ペア:

[(1, 8242745), (5, 1648549), (7, 1177535), (31, 265895), (35, 235507), (71, 116095), (107, 77035), (155, 53179), (217, 37985), (355, 23219), (497, 16585), (535, 15407), (749, 11005), (1085, 7597), (2201, 3745), (2485, 3317)]