81664072

素因数分解:

$2^3\times 7^1\times {\mathrm{457}}^1\times {\mathrm{3191}}^1$

素因数の和:3661

約数の個数: 32

約数和(自身を含む): 175432320

約数和(自身を除く): 93768248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 457, 914, 1828, 3191, 3199, 3656, 6382, 6398, 12764, 12796, 22337, 25528, 25592, 44674, 89348, 178696, 1458287, 2916574, 5833148, 10208009, 11666296, 20416018, 40832036, 81664072]

約数ペア:

[(1, 81664072), (2, 40832036), (4, 20416018), (7, 11666296), (8, 10208009), (14, 5833148), (28, 2916574), (56, 1458287), (457, 178696), (914, 89348), (1828, 44674), (3191, 25592), (3199, 25528), (3656, 22337), (6382, 12796), (6398, 12764)]