2077760180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{10709}}^1$

素因数の和:10916

約数の個数: 48

約数和(自身を含む): 4453218000

約数和(自身を除く): 2375457820

約数列:

[1, 2, 4, 5, 10, 20, 89, 109, 178, 218, 356, 436, 445, 545, 890, 1090, 1780, 2180, 9701, 10709, 19402, 21418, 38804, 42836, 48505, 53545, 97010, 107090, 194020, 214180, 953101, 1167281, 1906202, 2334562, 3812404, 4669124, 4765505, 5836405, 9531010, 11672810, 19062020, 23345620, 103888009, 207776018, 415552036, 519440045, 1038880090, 2077760180]

約数ペア:

[(1, 2077760180), (2, 1038880090), (4, 519440045), (5, 415552036), (10, 207776018), (20, 103888009), (89, 23345620), (109, 19062020), (178, 11672810), (218, 9531010), (356, 5836405), (436, 4765505), (445, 4669124), (545, 3812404), (890, 2334562), (1090, 1906202), (1780, 1167281), (2180, 953101), (9701, 214180), (10709, 194020), (19402, 107090), (21418, 97010), (38804, 53545), (42836, 48505)]