20204860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77711}}^1$

素因数の和:77733

約数の個数: 24

約数和(自身を含む): 45694656

約数和(自身を除く): 25489796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77711, 155422, 310844, 388555, 777110, 1010243, 1554220, 2020486, 4040972, 5051215, 10102430, 20204860]

約数ペア:

[(1, 20204860), (2, 10102430), (4, 5051215), (5, 4040972), (10, 2020486), (13, 1554220), (20, 1010243), (26, 777110), (52, 388555), (65, 310844), (130, 155422), (260, 77711)]