257029522040

素因数分解:

$2^3\times 5^1\times {\mathrm{5261}}^1\times {\mathrm{1221391}}^1$

素因数の和:1226663

約数の個数: 32

約数和(自身を含む): 578426823360

約数和(自身を除く): 321397301320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5261, 10522, 21044, 26305, 42088, 52610, 105220, 210440, 1221391, 2442782, 4885564, 6106955, 9771128, 12213910, 24427820, 48855640, 6425738051, 12851476102, 25702952204, 32128690255, 51405904408, 64257380510, 128514761020, 257029522040]

約数ペア:

[(1, 257029522040), (2, 128514761020), (4, 64257380510), (5, 51405904408), (8, 32128690255), (10, 25702952204), (20, 12851476102), (40, 6425738051), (5261, 48855640), (10522, 24427820), (21044, 12213910), (26305, 9771128), (42088, 6106955), (52610, 4885564), (105220, 2442782), (210440, 1221391)]