201977980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{531521}}^1$

素因数の和:531549

約数の個数: 24

約数和(自身を含む): 446478480

約数和(自身を除く): 244500500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 531521, 1063042, 2126084, 2657605, 5315210, 10098899, 10630420, 20197798, 40395596, 50494495, 100988990, 201977980]

約数ペア:

[(1, 201977980), (2, 100988990), (4, 50494495), (5, 40395596), (10, 20197798), (19, 10630420), (20, 10098899), (38, 5315210), (76, 2657605), (95, 2126084), (190, 1063042), (380, 531521)]