1253420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1279}}^1$

素因数の和:1302

約数の個数: 36

約数和(自身を含む): 3064320

約数和(自身を除く): 1810900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1279, 2558, 5116, 6395, 8953, 12790, 17906, 25580, 35812, 44765, 62671, 89530, 125342, 179060, 250684, 313355, 626710, 1253420]

約数ペア:

[(1, 1253420), (2, 626710), (4, 313355), (5, 250684), (7, 179060), (10, 125342), (14, 89530), (20, 62671), (28, 44765), (35, 35812), (49, 25580), (70, 17906), (98, 12790), (140, 8953), (196, 6395), (245, 5116), (490, 2558), (980, 1279)]