20210979325

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{7307}}^1$

素因数の和:7474

約数の個数: 48

約数和(自身を含む): 26794285056

約数和(自身を除く): 6583305731

約数列:

[1, 5, 25, 31, 43, 83, 155, 215, 415, 775, 1075, 1333, 2075, 2573, 3569, 6665, 7307, 12865, 17845, 33325, 36535, 64325, 89225, 110639, 182675, 226517, 314201, 553195, 606481, 1132585, 1571005, 2765975, 3032405, 5662925, 7855025, 9740231, 15162025, 18800911, 26078683, 48701155, 94004555, 130393415, 243505775, 470022775, 651967075, 808439173, 4042195865, 20210979325]

約数ペア:

[(1, 20210979325), (5, 4042195865), (25, 808439173), (31, 651967075), (43, 470022775), (83, 243505775), (155, 130393415), (215, 94004555), (415, 48701155), (775, 26078683), (1075, 18800911), (1333, 15162025), (2075, 9740231), (2573, 7855025), (3569, 5662925), (6665, 3032405), (7307, 2765975), (12865, 1571005), (17845, 1132585), (33325, 606481), (36535, 553195), (64325, 314201), (89225, 226517), (110639, 182675)]