1331014940

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{66751}}^1$

素因数の和:67757

約数の個数: 24

約数和(自身を含む): 2797976832

約数和(自身を除く): 1466961892

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4985, 9970, 19940, 66751, 133502, 267004, 333755, 667510, 1335020, 66550747, 133101494, 266202988, 332753735, 665507470, 1331014940]

約数ペア:

[(1, 1331014940), (2, 665507470), (4, 332753735), (5, 266202988), (10, 133101494), (20, 66550747), (997, 1335020), (1994, 667510), (3988, 333755), (4985, 267004), (9970, 133502), (19940, 66751)]