755400660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{256939}}^1$

素因数の和:256965

約数の個数: 72

約数和(自身を含む): 2460457440

約数和(自身を除く): 1705056780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 256939, 513878, 770817, 1027756, 1284695, 1541634, 1798573, 2569390, 3083268, 3597146, 3854085, 5138780, 5395719, 7194292, 7708170, 8992865, 10791438, 12590011, 15416340, 17985730, 21582876, 25180022, 26978595, 35971460, 37770033, 50360044, 53957190, 62950055, 75540066, 107914380, 125900110, 151080132, 188850165, 251800220, 377700330, 755400660]

約数ペア:

[(1, 755400660), (2, 377700330), (3, 251800220), (4, 188850165), (5, 151080132), (6, 125900110), (7, 107914380), (10, 75540066), (12, 62950055), (14, 53957190), (15, 50360044), (20, 37770033), (21, 35971460), (28, 26978595), (30, 25180022), (35, 21582876), (42, 17985730), (49, 15416340), (60, 12590011), (70, 10791438), (84, 8992865), (98, 7708170), (105, 7194292), (140, 5395719), (147, 5138780), (196, 3854085), (210, 3597146), (245, 3083268), (294, 2569390), (420, 1798573), (490, 1541634), (588, 1284695), (735, 1027756), (980, 770817), (1470, 513878), (2940, 256939)]