261644880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{155741}}^1$

素因数の和:155764

約数の個数: 80

約数和(自身を含む): 926976384

約数和(自身を除く): 665331504

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 155741, 311482, 467223, 622964, 778705, 934446, 1090187, 1245928, 1557410, 1868892, 2180374, 2336115, 2491856, 3114820, 3270561, 3737784, 4360748, 4672230, 5450935, 6229640, 6541122, 7475568, 8721496, 9344460, 10901870, 12459280, 13082244, 16352805, 17442992, 18688920, 21803740, 26164488, 32705610, 37377840, 43607480, 52328976, 65411220, 87214960, 130822440, 261644880]

約数ペア:

[(1, 261644880), (2, 130822440), (3, 87214960), (4, 65411220), (5, 52328976), (6, 43607480), (7, 37377840), (8, 32705610), (10, 26164488), (12, 21803740), (14, 18688920), (15, 17442992), (16, 16352805), (20, 13082244), (21, 12459280), (24, 10901870), (28, 9344460), (30, 8721496), (35, 7475568), (40, 6541122), (42, 6229640), (48, 5450935), (56, 4672230), (60, 4360748), (70, 3737784), (80, 3270561), (84, 3114820), (105, 2491856), (112, 2336115), (120, 2180374), (140, 1868892), (168, 1557410), (210, 1245928), (240, 1090187), (280, 934446), (336, 778705), (420, 622964), (560, 467223), (840, 311482), (1680, 155741)]