128501860

素因数分解:

$2^2\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{4931}}^1$

素因数の和:6243

約数の個数: 24

約数和(自身を含む): 270115776

約数和(自身を除く): 141613916

約数列:

[1, 2, 4, 5, 10, 20, 1303, 2606, 4931, 5212, 6515, 9862, 13030, 19724, 24655, 26060, 49310, 98620, 6425093, 12850186, 25700372, 32125465, 64250930, 128501860]

約数ペア:

[(1, 128501860), (2, 64250930), (4, 32125465), (5, 25700372), (10, 12850186), (20, 6425093), (1303, 98620), (2606, 49310), (4931, 26060), (5212, 24655), (6515, 19724), (9862, 13030)]