20781617672

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{619}}^1\times {\mathrm{71129}}^1$

素因数の和:71813

約数の個数: 32

約数和(自身を含む): 39690540000

約数和(自身を除く): 18908922328

約数列:

[1, 2, 4, 8, 59, 118, 236, 472, 619, 1238, 2476, 4952, 36521, 71129, 73042, 142258, 146084, 284516, 292168, 569032, 4196611, 8393222, 16786444, 33572888, 44028851, 88057702, 176115404, 352230808, 2597702209, 5195404418, 10390808836, 20781617672]

約数ペア:

[(1, 20781617672), (2, 10390808836), (4, 5195404418), (8, 2597702209), (59, 352230808), (118, 176115404), (236, 88057702), (472, 44028851), (619, 33572888), (1238, 16786444), (2476, 8393222), (4952, 4196611), (36521, 569032), (71129, 292168), (73042, 284516), (142258, 146084)]