40484780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 100069200

約数和(自身を除く): 59584420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 196, 218, 245, 379, 436, 490, 545, 758, 763, 980, 1090, 1516, 1526, 1895, 2180, 2653, 3052, 3790, 3815, 5306, 5341, 7580, 7630, 10612, 10682, 13265, 15260, 18571, 21364, 26530, 26705, 37142, 41311, 53060, 53410, 74284, 82622, 92855, 106820, 165244, 185710, 206555, 289177, 371420, 413110, 578354, 826220, 1156708, 1445885, 2024239, 2891770, 4048478, 5783540, 8096956, 10121195, 20242390, 40484780]

約数ペア:

[(1, 40484780), (2, 20242390), (4, 10121195), (5, 8096956), (7, 5783540), (10, 4048478), (14, 2891770), (20, 2024239), (28, 1445885), (35, 1156708), (49, 826220), (70, 578354), (98, 413110), (109, 371420), (140, 289177), (196, 206555), (218, 185710), (245, 165244), (379, 106820), (436, 92855), (490, 82622), (545, 74284), (758, 53410), (763, 53060), (980, 41311), (1090, 37142), (1516, 26705), (1526, 26530), (1895, 21364), (2180, 18571), (2653, 15260), (3052, 13265), (3790, 10682), (3815, 10612), (5306, 7630), (5341, 7580)]