1291967170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{20407}}^1$

素因数の和:20914

約数の個数: 32

約数和(自身を含む): 2509694208

約数和(自身を除く): 1217727038

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 487, 974, 2435, 4870, 6331, 12662, 20407, 31655, 40814, 63310, 102035, 204070, 265291, 530582, 1326455, 2652910, 9938209, 19876418, 49691045, 99382090, 129196717, 258393434, 645983585, 1291967170]

約数ペア:

[(1, 1291967170), (2, 645983585), (5, 258393434), (10, 129196717), (13, 99382090), (26, 49691045), (65, 19876418), (130, 9938209), (487, 2652910), (974, 1326455), (2435, 530582), (4870, 265291), (6331, 204070), (12662, 102035), (20407, 63310), (31655, 40814)]