1780872990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{351257}}^1$

素因数の和:351293

約数の個数: 48

約数和(自身を含む): 4628175408

約数和(自身を除く): 2847302418

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 169, 195, 338, 390, 507, 845, 1014, 1690, 2535, 5070, 351257, 702514, 1053771, 1756285, 2107542, 3512570, 4566341, 5268855, 9132682, 10537710, 13699023, 22831705, 27398046, 45663410, 59362433, 68495115, 118724866, 136990230, 178087299, 296812165, 356174598, 593624330, 890436495, 1780872990]

約数ペア:

[(1, 1780872990), (2, 890436495), (3, 593624330), (5, 356174598), (6, 296812165), (10, 178087299), (13, 136990230), (15, 118724866), (26, 68495115), (30, 59362433), (39, 45663410), (65, 27398046), (78, 22831705), (130, 13699023), (169, 10537710), (195, 9132682), (338, 5268855), (390, 4566341), (507, 3512570), (845, 2107542), (1014, 1756285), (1690, 1053771), (2535, 702514), (5070, 351257)]