398775762959

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1\times {\mathrm{68501}}^1$

素因数の和:68871

約数の個数: 32

約数和(自身を含む): 476291665920

約数和(自身を除く): 77515902961

約数列:

[1, 7, 31, 139, 193, 217, 973, 1351, 4309, 5983, 26827, 30163, 41881, 68501, 187789, 479507, 831637, 2123531, 5821459, 9521639, 13220693, 14864717, 66651473, 92544851, 295170809, 409841483, 1837676327, 2066195663, 2868890381, 12863734289, 56967966137, 398775762959]

約数ペア:

[(1, 398775762959), (7, 56967966137), (31, 12863734289), (139, 2868890381), (193, 2066195663), (217, 1837676327), (973, 409841483), (1351, 295170809), (4309, 92544851), (5983, 66651473), (26827, 14864717), (30163, 13220693), (41881, 9521639), (68501, 5821459), (187789, 2123531), (479507, 831637)]