253248520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{904459}}^1$

素因数の和:904477

約数の個数: 32

約数和(自身を含む): 651211200

約数和(自身を除く): 397962680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 904459, 1808918, 3617836, 4522295, 6331213, 7235672, 9044590, 12662426, 18089180, 25324852, 31656065, 36178360, 50649704, 63312130, 126624260, 253248520]

約数ペア:

[(1, 253248520), (2, 126624260), (4, 63312130), (5, 50649704), (7, 36178360), (8, 31656065), (10, 25324852), (14, 18089180), (20, 12662426), (28, 9044590), (35, 7235672), (40, 6331213), (56, 4522295), (70, 3617836), (140, 1808918), (280, 904459)]