205234561

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 257483520

約数和(自身を除く): 52248959

約数列:

[1, 7, 19, 41, 61, 133, 287, 427, 617, 779, 1159, 2501, 4319, 5453, 8113, 11723, 17507, 25297, 37637, 47519, 82061, 177079, 263459, 332633, 480643, 715103, 1543117, 3364501, 5005721, 10801819, 29319223, 205234561]

約数ペア:

[(1, 205234561), (7, 29319223), (19, 10801819), (41, 5005721), (61, 3364501), (133, 1543117), (287, 715103), (427, 480643), (617, 332633), (779, 263459), (1159, 177079), (2501, 82061), (4319, 47519), (5453, 37637), (8113, 25297), (11723, 17507)]