19677640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5927}}^1$

素因数の和:6021

約数の個数: 32

約数和(自身を含む): 44815680

約数和(自身を除く): 25138040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 5927, 11854, 23708, 29635, 47416, 59270, 118540, 237080, 491941, 983882, 1967764, 2459705, 3935528, 4919410, 9838820, 19677640]

約数ペア:

[(1, 19677640), (2, 9838820), (4, 4919410), (5, 3935528), (8, 2459705), (10, 1967764), (20, 983882), (40, 491941), (83, 237080), (166, 118540), (332, 59270), (415, 47416), (664, 29635), (830, 23708), (1660, 11854), (3320, 5927)]