256913776

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{11527}}^1$

素因数の和:11741

約数の個数: 40

約数和(自身を含む): 571788800

約数和(自身を除く): 314875024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 1393, 1592, 2786, 3184, 5572, 11144, 11527, 22288, 23054, 46108, 80689, 92216, 161378, 184432, 322756, 645512, 1291024, 2293873, 4587746, 9175492, 16057111, 18350984, 32114222, 36701968, 64228444, 128456888, 256913776]

約数ペア:

[(1, 256913776), (2, 128456888), (4, 64228444), (7, 36701968), (8, 32114222), (14, 18350984), (16, 16057111), (28, 9175492), (56, 4587746), (112, 2293873), (199, 1291024), (398, 645512), (796, 322756), (1393, 184432), (1592, 161378), (2786, 92216), (3184, 80689), (5572, 46108), (11144, 23054), (11527, 22288)]