254501305

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{389}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 333590400

約数和(自身を除く): 79089095

約数列:

[1, 5, 17, 43, 85, 179, 215, 389, 731, 895, 1945, 3043, 3655, 6613, 7697, 15215, 16727, 33065, 38485, 69631, 83635, 130849, 284359, 348155, 654245, 1183727, 1421795, 2994133, 5918635, 14970665, 50900261, 254501305]

約数ペア:

[(1, 254501305), (5, 50900261), (17, 14970665), (43, 5918635), (85, 2994133), (179, 1421795), (215, 1183727), (389, 654245), (731, 348155), (895, 284359), (1945, 130849), (3043, 83635), (3655, 69631), (6613, 38485), (7697, 33065), (15215, 16727)]