664722429

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 1119928320

約数和(自身を除く): 455205891

約数列:

[1, 3, 7, 19, 21, 31, 57, 61, 93, 133, 183, 217, 399, 427, 589, 651, 881, 1159, 1281, 1767, 1891, 2643, 3477, 4123, 5673, 6167, 8113, 12369, 13237, 16739, 18501, 24339, 27311, 35929, 39711, 50217, 53741, 81933, 107787, 117173, 161223, 191177, 251503, 351519, 376187, 518909, 573531, 754509, 1021079, 1128561, 1556727, 1665971, 3063237, 3632363, 4997913, 7147553, 10897089, 11661797, 21442659, 31653449, 34985391, 94960347, 221574143, 664722429]

約数ペア:

[(1, 664722429), (3, 221574143), (7, 94960347), (19, 34985391), (21, 31653449), (31, 21442659), (57, 11661797), (61, 10897089), (93, 7147553), (133, 4997913), (183, 3632363), (217, 3063237), (399, 1665971), (427, 1556727), (589, 1128561), (651, 1021079), (881, 754509), (1159, 573531), (1281, 518909), (1767, 376187), (1891, 351519), (2643, 251503), (3477, 191177), (4123, 161223), (5673, 117173), (6167, 107787), (8113, 81933), (12369, 53741), (13237, 50217), (16739, 39711), (18501, 35929), (24339, 27311)]