19998283525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{331}}^1\times {\mathrm{2647}}^1$

素因数の和:3082

約数の個数: 48

約数和(自身を含む): 27471241728

約数和(自身を除く): 7472958203

約数列:

[1, 5, 11, 25, 55, 83, 275, 331, 415, 913, 1655, 2075, 2647, 3641, 4565, 8275, 13235, 18205, 22825, 27473, 29117, 66175, 91025, 137365, 145585, 219701, 302203, 686825, 727925, 876157, 1098505, 1511015, 2416711, 4380785, 5492525, 7555075, 9637727, 12083555, 21903925, 48188635, 60417775, 72721031, 240943175, 363605155, 799931341, 1818025775, 3999656705, 19998283525]

約数ペア:

[(1, 19998283525), (5, 3999656705), (11, 1818025775), (25, 799931341), (55, 363605155), (83, 240943175), (275, 72721031), (331, 60417775), (415, 48188635), (913, 21903925), (1655, 12083555), (2075, 9637727), (2647, 7555075), (3641, 5492525), (4565, 4380785), (8275, 2416711), (13235, 1511015), (18205, 1098505), (22825, 876157), (27473, 727925), (29117, 686825), (66175, 302203), (91025, 219701), (137365, 145585)]