206860745

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 318743040

約数和(自身を除く): 111882295

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 97, 109, 215, 301, 455, 485, 545, 559, 679, 763, 1261, 1417, 1505, 2795, 3395, 3815, 3913, 4171, 4687, 6305, 7085, 8827, 9919, 10573, 19565, 20855, 23435, 29197, 32809, 44135, 49595, 52865, 54223, 60931, 74011, 137449, 145985, 164045, 271115, 304655, 370055, 379561, 426517, 454639, 687245, 962143, 1897805, 2132585, 2273195, 3182473, 4810715, 5910307, 15912365, 29551535, 41372149, 206860745]

約数ペア:

[(1, 206860745), (5, 41372149), (7, 29551535), (13, 15912365), (35, 5910307), (43, 4810715), (65, 3182473), (91, 2273195), (97, 2132585), (109, 1897805), (215, 962143), (301, 687245), (455, 454639), (485, 426517), (545, 379561), (559, 370055), (679, 304655), (763, 271115), (1261, 164045), (1417, 145985), (1505, 137449), (2795, 74011), (3395, 60931), (3815, 54223), (3913, 52865), (4171, 49595), (4687, 44135), (6305, 32809), (7085, 29197), (8827, 23435), (9919, 20855), (10573, 19565)]