66217880

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{12637}}^1$

素因数の和:12779

約数の個数: 32

約数和(自身を含む): 150139440

約数和(自身を除く): 83921560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 12637, 25274, 50548, 63185, 101096, 126370, 252740, 505480, 1655447, 3310894, 6621788, 8277235, 13243576, 16554470, 33108940, 66217880]

約数ペア:

[(1, 66217880), (2, 33108940), (4, 16554470), (5, 13243576), (8, 8277235), (10, 6621788), (20, 3310894), (40, 1655447), (131, 505480), (262, 252740), (524, 126370), (655, 101096), (1048, 63185), (1310, 50548), (2620, 25274), (5240, 12637)]