78877780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{74413}}^1$

素因数の和:74475

約数の個数: 24

約数和(自身を含む): 168770952

約数和(自身を除く): 89893172

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 74413, 148826, 297652, 372065, 744130, 1488260, 3943889, 7887778, 15775556, 19719445, 39438890, 78877780]

約数ペア:

[(1, 78877780), (2, 39438890), (4, 19719445), (5, 15775556), (10, 7887778), (20, 3943889), (53, 1488260), (106, 744130), (212, 372065), (265, 297652), (530, 148826), (1060, 74413)]