279347789

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 340402176

約数和(自身を除く): 61054387

約数列:

[1, 7, 31, 53, 107, 217, 227, 371, 749, 1589, 1643, 3317, 5671, 7037, 11501, 12031, 23219, 24289, 39697, 49259, 84217, 170023, 175801, 372961, 752959, 1230607, 1287317, 2610727, 5270713, 9011219, 39906827, 279347789]

約数ペア:

[(1, 279347789), (7, 39906827), (31, 9011219), (53, 5270713), (107, 2610727), (217, 1287317), (227, 1230607), (371, 752959), (749, 372961), (1589, 175801), (1643, 170023), (3317, 84217), (5671, 49259), (7037, 39697), (11501, 24289), (12031, 23219)]