28665640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9817}}^1$

素因数の和:9901

約数の個数: 32

約数和(自身を含む): 65387880

約数和(自身を除く): 36722240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 9817, 19634, 39268, 49085, 78536, 98170, 196340, 392680, 716641, 1433282, 2866564, 3583205, 5733128, 7166410, 14332820, 28665640]

約数ペア:

[(1, 28665640), (2, 14332820), (4, 7166410), (5, 5733128), (8, 3583205), (10, 2866564), (20, 1433282), (40, 716641), (73, 392680), (146, 196340), (292, 98170), (365, 78536), (584, 49085), (730, 39268), (1460, 19634), (2920, 9817)]