16781120

素因数分解:

$2^6\times 5^1\times {\mathrm{229}}^2$

素因数の和:475

約数の個数: 42

約数和(自身を含む): 40135302

約数和(自身を除く): 23354182

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 229, 320, 458, 916, 1145, 1832, 2290, 3664, 4580, 7328, 9160, 14656, 18320, 36640, 52441, 73280, 104882, 209764, 262205, 419528, 524410, 839056, 1048820, 1678112, 2097640, 3356224, 4195280, 8390560, 16781120]

約数ペア:

[(1, 16781120), (2, 8390560), (4, 4195280), (5, 3356224), (8, 2097640), (10, 1678112), (16, 1048820), (20, 839056), (32, 524410), (40, 419528), (64, 262205), (80, 209764), (160, 104882), (229, 73280), (320, 52441), (458, 36640), (916, 18320), (1145, 14656), (1832, 9160), (2290, 7328), (3664, 4580)]