780957985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{2207}}^1$

素因数の和:2433

約数の個数: 32

約数和(自身を含む): 1041610752

約数和(自身を除く): 260652767

約数列:

[1, 5, 17, 23, 85, 115, 181, 391, 905, 1955, 2207, 3077, 4163, 11035, 15385, 20815, 37519, 50761, 70771, 187595, 253805, 353855, 399467, 862937, 1997335, 4314685, 6790939, 9187741, 33954695, 45938705, 156191597, 780957985]

約数ペア:

[(1, 780957985), (5, 156191597), (17, 45938705), (23, 33954695), (85, 9187741), (115, 6790939), (181, 4314685), (391, 1997335), (905, 862937), (1955, 399467), (2207, 353855), (3077, 253805), (4163, 187595), (11035, 70771), (15385, 50761), (20815, 37519)]