339950780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{17911}}^1$

素因数の和:18006

約数の個数: 48

約数和(自身を含む): 779386944

約数和(自身を除く): 439436164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1898, 3796, 4745, 9490, 17911, 18980, 35822, 71644, 89555, 179110, 232843, 358220, 465686, 931372, 1164215, 1307503, 2328430, 2615006, 4656860, 5230012, 6537515, 13075030, 16997539, 26150060, 33995078, 67990156, 84987695, 169975390, 339950780]

約数ペア:

[(1, 339950780), (2, 169975390), (4, 84987695), (5, 67990156), (10, 33995078), (13, 26150060), (20, 16997539), (26, 13075030), (52, 6537515), (65, 5230012), (73, 4656860), (130, 2615006), (146, 2328430), (260, 1307503), (292, 1164215), (365, 931372), (730, 465686), (949, 358220), (1460, 232843), (1898, 179110), (3796, 89555), (4745, 71644), (9490, 35822), (17911, 18980)]