1390505284

素因数分解:

$2^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{156659}}^1$

素因数の和:156987

約数の個数: 24

約数和(自身を含む): 2789801280

約数和(自身を除く): 1399295996

約数列:

[1, 2, 4, 7, 14, 28, 317, 634, 1268, 2219, 4438, 8876, 156659, 313318, 626636, 1096613, 2193226, 4386452, 49660903, 99321806, 198643612, 347626321, 695252642, 1390505284]

約数ペア:

[(1, 1390505284), (2, 695252642), (4, 347626321), (7, 198643612), (14, 99321806), (28, 49660903), (317, 4386452), (634, 2193226), (1268, 1096613), (2219, 626636), (4438, 313318), (8876, 156659)]