800660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 2106720

約数和(自身を除く): 1306060

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 43, 49, 70, 76, 86, 95, 98, 133, 140, 172, 190, 196, 215, 245, 266, 301, 380, 430, 490, 532, 602, 665, 817, 860, 931, 980, 1204, 1330, 1505, 1634, 1862, 2107, 2660, 3010, 3268, 3724, 4085, 4214, 4655, 5719, 6020, 8170, 8428, 9310, 10535, 11438, 16340, 18620, 21070, 22876, 28595, 40033, 42140, 57190, 80066, 114380, 160132, 200165, 400330, 800660]

約数ペア:

[(1, 800660), (2, 400330), (4, 200165), (5, 160132), (7, 114380), (10, 80066), (14, 57190), (19, 42140), (20, 40033), (28, 28595), (35, 22876), (38, 21070), (43, 18620), (49, 16340), (70, 11438), (76, 10535), (86, 9310), (95, 8428), (98, 8170), (133, 6020), (140, 5719), (172, 4655), (190, 4214), (196, 4085), (215, 3724), (245, 3268), (266, 3010), (301, 2660), (380, 2107), (430, 1862), (490, 1634), (532, 1505), (602, 1330), (665, 1204), (817, 980), (860, 931)]