978889590

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{517931}}^1$

素因数の和:517954

約数の個数: 64

約数和(自身を含む): 2983288320

約数和(自身を除く): 2004398730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 517931, 1035862, 1553793, 2589655, 3107586, 3625517, 4661379, 5179310, 7251034, 7768965, 9322758, 10876551, 13984137, 15537930, 18127585, 21753102, 23306895, 27968274, 32629653, 36255170, 46613790, 54382755, 65259306, 69920685, 97888959, 108765510, 139841370, 163148265, 195777918, 326296530, 489444795, 978889590]

約数ペア:

[(1, 978889590), (2, 489444795), (3, 326296530), (5, 195777918), (6, 163148265), (7, 139841370), (9, 108765510), (10, 97888959), (14, 69920685), (15, 65259306), (18, 54382755), (21, 46613790), (27, 36255170), (30, 32629653), (35, 27968274), (42, 23306895), (45, 21753102), (54, 18127585), (63, 15537930), (70, 13984137), (90, 10876551), (105, 9322758), (126, 7768965), (135, 7251034), (189, 5179310), (210, 4661379), (270, 3625517), (315, 3107586), (378, 2589655), (630, 1553793), (945, 1035862), (1890, 517931)]