645480819

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{631}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 984653472

約数和(自身を除く): 339172653

約数列:

[1, 3, 9, 27, 73, 81, 173, 219, 519, 631, 657, 1557, 1893, 1971, 4671, 5679, 5913, 12629, 14013, 17037, 37887, 46063, 51111, 109163, 113661, 138189, 327489, 340983, 414567, 982467, 1022949, 1243701, 2947401, 3731103, 7968899, 8842203, 23906697, 71720091, 215160273, 645480819]

約数ペア:

[(1, 645480819), (3, 215160273), (9, 71720091), (27, 23906697), (73, 8842203), (81, 7968899), (173, 3731103), (219, 2947401), (519, 1243701), (631, 1022949), (657, 982467), (1557, 414567), (1893, 340983), (1971, 327489), (4671, 138189), (5679, 113661), (5913, 109163), (12629, 51111), (14013, 46063), (17037, 37887)]