79918960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{461}}^1$

素因数の和:682

約数の個数: 80

約数和(自身を含む): 204174432

約数和(自身を除く): 124255472

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 394, 440, 461, 788, 880, 922, 985, 1576, 1844, 1970, 2167, 2305, 3152, 3688, 3940, 4334, 4610, 5071, 7376, 7880, 8668, 9220, 10142, 10835, 15760, 17336, 18440, 20284, 21670, 25355, 34672, 36880, 40568, 43340, 50710, 81136, 86680, 90817, 101420, 173360, 181634, 202840, 363268, 405680, 454085, 726536, 908170, 998987, 1453072, 1816340, 1997974, 3632680, 3995948, 4994935, 7265360, 7991896, 9989870, 15983792, 19979740, 39959480, 79918960]

約数ペア:

[(1, 79918960), (2, 39959480), (4, 19979740), (5, 15983792), (8, 9989870), (10, 7991896), (11, 7265360), (16, 4994935), (20, 3995948), (22, 3632680), (40, 1997974), (44, 1816340), (55, 1453072), (80, 998987), (88, 908170), (110, 726536), (176, 454085), (197, 405680), (220, 363268), (394, 202840), (440, 181634), (461, 173360), (788, 101420), (880, 90817), (922, 86680), (985, 81136), (1576, 50710), (1844, 43340), (1970, 40568), (2167, 36880), (2305, 34672), (3152, 25355), (3688, 21670), (3940, 20284), (4334, 18440), (4610, 17336), (5071, 15760), (7376, 10835), (7880, 10142), (8668, 9220)]