320172860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{326707}}^1$

素因数の和:326730

約数の個数: 36

約数和(自身を含む): 782138952

約数和(自身を除く): 461966092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 326707, 653414, 1306828, 1633535, 2286949, 3267070, 4573898, 6534140, 9147796, 11434745, 16008643, 22869490, 32017286, 45738980, 64034572, 80043215, 160086430, 320172860]

約数ペア:

[(1, 320172860), (2, 160086430), (4, 80043215), (5, 64034572), (7, 45738980), (10, 32017286), (14, 22869490), (20, 16008643), (28, 11434745), (35, 9147796), (49, 6534140), (70, 4573898), (98, 3267070), (140, 2286949), (196, 1633535), (245, 1306828), (490, 653414), (980, 326707)]