28486060

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 61538400

約数和(自身を除く): 33052340

約数列:

[1, 2, 4, 5, 10, 20, 73, 109, 146, 179, 218, 292, 358, 365, 436, 545, 716, 730, 895, 1090, 1460, 1790, 2180, 3580, 7957, 13067, 15914, 19511, 26134, 31828, 39022, 39785, 52268, 65335, 78044, 79570, 97555, 130670, 159140, 195110, 261340, 390220, 1424303, 2848606, 5697212, 7121515, 14243030, 28486060]

約数ペア:

[(1, 28486060), (2, 14243030), (4, 7121515), (5, 5697212), (10, 2848606), (20, 1424303), (73, 390220), (109, 261340), (146, 195110), (179, 159140), (218, 130670), (292, 97555), (358, 79570), (365, 78044), (436, 65335), (545, 52268), (716, 39785), (730, 39022), (895, 31828), (1090, 26134), (1460, 19511), (1790, 15914), (2180, 13067), (3580, 7957)]