27881530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 53401680

約数和(自身を除く): 25520150

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 401, 409, 802, 818, 2005, 2045, 4010, 4090, 6817, 6953, 13634, 13906, 34085, 34765, 68170, 69530, 164009, 328018, 820045, 1640090, 2788153, 5576306, 13940765, 27881530]

約数ペア:

[(1, 27881530), (2, 13940765), (5, 5576306), (10, 2788153), (17, 1640090), (34, 820045), (85, 328018), (170, 164009), (401, 69530), (409, 68170), (802, 34765), (818, 34085), (2005, 13906), (2045, 13634), (4010, 6953), (4090, 6817)]