80781140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{599}}^1\times {\mathrm{613}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 185673600

約数和(自身を除く): 104892460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 599, 613, 1198, 1226, 2396, 2452, 2995, 3065, 5990, 6130, 6589, 6743, 11980, 12260, 13178, 13486, 26356, 26972, 32945, 33715, 65890, 67430, 131780, 134860, 367187, 734374, 1468748, 1835935, 3671870, 4039057, 7343740, 8078114, 16156228, 20195285, 40390570, 80781140]

約数ペア:

[(1, 80781140), (2, 40390570), (4, 20195285), (5, 16156228), (10, 8078114), (11, 7343740), (20, 4039057), (22, 3671870), (44, 1835935), (55, 1468748), (110, 734374), (220, 367187), (599, 134860), (613, 131780), (1198, 67430), (1226, 65890), (2396, 33715), (2452, 32945), (2995, 26972), (3065, 26356), (5990, 13486), (6130, 13178), (6589, 12260), (6743, 11980)]