71897940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{399433}}^1$

素因数の和:399448

約数の個数: 36

約数和(自身を含む): 218090964

約数和(自身を除く): 146193024

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 399433, 798866, 1198299, 1597732, 1997165, 2396598, 3594897, 3994330, 4793196, 5991495, 7189794, 7988660, 11982990, 14379588, 17974485, 23965980, 35948970, 71897940]

約数ペア:

[(1, 71897940), (2, 35948970), (3, 23965980), (4, 17974485), (5, 14379588), (6, 11982990), (9, 7988660), (10, 7189794), (12, 5991495), (15, 4793196), (18, 3994330), (20, 3594897), (30, 2396598), (36, 1997165), (45, 1597732), (60, 1198299), (90, 798866), (180, 399433)]