20149555975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1\times {\mathrm{1459}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 26525980800

約数和(自身を除く): 6376424825

約数列:

[1, 5, 25, 29, 43, 145, 215, 443, 725, 1075, 1247, 1459, 2215, 6235, 7295, 11075, 12847, 19049, 31175, 36475, 42311, 62737, 64235, 95245, 211555, 313685, 321175, 476225, 552421, 646337, 1057775, 1568425, 1819373, 2762105, 3231685, 9096865, 13810525, 16158425, 18743773, 27792491, 45484325, 93718865, 138962455, 468594325, 694812275, 805982239, 4029911195, 20149555975]

約数ペア:

[(1, 20149555975), (5, 4029911195), (25, 805982239), (29, 694812275), (43, 468594325), (145, 138962455), (215, 93718865), (443, 45484325), (725, 27792491), (1075, 18743773), (1247, 16158425), (1459, 13810525), (2215, 9096865), (6235, 3231685), (7295, 2762105), (11075, 1819373), (12847, 1568425), (19049, 1057775), (31175, 646337), (36475, 552421), (42311, 476225), (62737, 321175), (64235, 313685), (95245, 211555)]