18759650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 144

約数和(自身を含む): 47496960

約数和(自身を除く): 28737310

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 25, 26, 31, 35, 38, 49, 50, 62, 65, 70, 91, 95, 98, 130, 133, 155, 175, 182, 190, 217, 245, 247, 266, 310, 325, 350, 403, 434, 455, 475, 490, 494, 589, 637, 650, 665, 775, 806, 910, 931, 950, 1085, 1178, 1225, 1235, 1274, 1330, 1519, 1550, 1729, 1862, 2015, 2170, 2275, 2450, 2470, 2821, 2945, 3038, 3185, 3325, 3458, 4030, 4123, 4550, 4655, 5425, 5642, 5890, 6175, 6370, 6650, 7595, 7657, 8246, 8645, 9310, 10075, 10850, 12103, 12350, 14105, 14725, 15190, 15314, 15925, 17290, 19747, 20150, 20615, 23275, 24206, 28210, 28861, 29450, 31850, 37975, 38285, 39494, 41230, 43225, 46550, 53599, 57722, 60515, 70525, 75950, 76570, 86450, 98735, 103075, 107198, 121030, 141050, 144305, 191425, 197470, 206150, 267995, 288610, 302575, 375193, 382850, 493675, 535990, 605150, 721525, 750386, 987350, 1339975, 1443050, 1875965, 2679950, 3751930, 9379825, 18759650]

約数ペア:

[(1, 18759650), (2, 9379825), (5, 3751930), (7, 2679950), (10, 1875965), (13, 1443050), (14, 1339975), (19, 987350), (25, 750386), (26, 721525), (31, 605150), (35, 535990), (38, 493675), (49, 382850), (50, 375193), (62, 302575), (65, 288610), (70, 267995), (91, 206150), (95, 197470), (98, 191425), (130, 144305), (133, 141050), (155, 121030), (175, 107198), (182, 103075), (190, 98735), (217, 86450), (245, 76570), (247, 75950), (266, 70525), (310, 60515), (325, 57722), (350, 53599), (403, 46550), (434, 43225), (455, 41230), (475, 39494), (490, 38285), (494, 37975), (589, 31850), (637, 29450), (650, 28861), (665, 28210), (775, 24206), (806, 23275), (910, 20615), (931, 20150), (950, 19747), (1085, 17290), (1178, 15925), (1225, 15314), (1235, 15190), (1274, 14725), (1330, 14105), (1519, 12350), (1550, 12103), (1729, 10850), (1862, 10075), (2015, 9310), (2170, 8645), (2275, 8246), (2450, 7657), (2470, 7595), (2821, 6650), (2945, 6370), (3038, 6175), (3185, 5890), (3325, 5642), (3458, 5425), (4030, 4655), (4123, 4550)]