991250820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{786707}}^1$

素因数の和:786729

約数の個数: 72

約数和(自身を含む): 3436340544

約数和(自身を除く): 2445089724

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 786707, 1573414, 2360121, 3146828, 3933535, 4720242, 5506949, 7080363, 7867070, 9440484, 11013898, 11800605, 14160726, 15734140, 16520847, 22027796, 23601210, 27534745, 28321452, 33041694, 35401815, 47202420, 49562541, 55069490, 66083388, 70803630, 82604235, 99125082, 110138980, 141607260, 165208470, 198250164, 247812705, 330416940, 495625410, 991250820]

約数ペア:

[(1, 991250820), (2, 495625410), (3, 330416940), (4, 247812705), (5, 198250164), (6, 165208470), (7, 141607260), (9, 110138980), (10, 99125082), (12, 82604235), (14, 70803630), (15, 66083388), (18, 55069490), (20, 49562541), (21, 47202420), (28, 35401815), (30, 33041694), (35, 28321452), (36, 27534745), (42, 23601210), (45, 22027796), (60, 16520847), (63, 15734140), (70, 14160726), (84, 11800605), (90, 11013898), (105, 9440484), (126, 7867070), (140, 7080363), (180, 5506949), (210, 4720242), (252, 3933535), (315, 3146828), (420, 2360121), (630, 1573414), (1260, 786707)]