64855816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{1321}}^1$

素因数の和:1382

約数の個数: 48

約数和(自身を含む): 135994140

約数和(自身を除く): 71138324

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 361, 646, 722, 1292, 1321, 1444, 2584, 2642, 2888, 5284, 6137, 10568, 12274, 22457, 24548, 25099, 44914, 49096, 50198, 89828, 100396, 179656, 200792, 426683, 476881, 853366, 953762, 1706732, 1907524, 3413464, 3815048, 8106977, 16213954, 32427908, 64855816]

約数ペア:

[(1, 64855816), (2, 32427908), (4, 16213954), (8, 8106977), (17, 3815048), (19, 3413464), (34, 1907524), (38, 1706732), (68, 953762), (76, 853366), (136, 476881), (152, 426683), (323, 200792), (361, 179656), (646, 100396), (722, 89828), (1292, 50198), (1321, 49096), (1444, 44914), (2584, 25099), (2642, 24548), (2888, 22457), (5284, 12274), (6137, 10568)]