78821280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:579

約数の個数: 144

約数和(自身を含む): 271724544

約数和(自身を除く): 192903264

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 127, 144, 160, 180, 240, 254, 288, 360, 381, 431, 480, 508, 635, 720, 762, 862, 1016, 1143, 1270, 1293, 1440, 1524, 1724, 1905, 2032, 2155, 2286, 2540, 2586, 3048, 3448, 3810, 3879, 4064, 4310, 4572, 5080, 5172, 5715, 6096, 6465, 6896, 7620, 7758, 8620, 9144, 10160, 10344, 11430, 12192, 12930, 13792, 15240, 15516, 17240, 18288, 19395, 20320, 20688, 22860, 25860, 30480, 31032, 34480, 36576, 38790, 41376, 45720, 51720, 54737, 60960, 62064, 68960, 77580, 91440, 103440, 109474, 124128, 155160, 164211, 182880, 206880, 218948, 273685, 310320, 328422, 437896, 492633, 547370, 620640, 656844, 821055, 875792, 985266, 1094740, 1313688, 1642110, 1751584, 1970532, 2189480, 2463165, 2627376, 3284220, 3941064, 4378960, 4926330, 5254752, 6568440, 7882128, 8757920, 9852660, 13136880, 15764256, 19705320, 26273760, 39410640, 78821280]

約数ペア:

[(1, 78821280), (2, 39410640), (3, 26273760), (4, 19705320), (5, 15764256), (6, 13136880), (8, 9852660), (9, 8757920), (10, 7882128), (12, 6568440), (15, 5254752), (16, 4926330), (18, 4378960), (20, 3941064), (24, 3284220), (30, 2627376), (32, 2463165), (36, 2189480), (40, 1970532), (45, 1751584), (48, 1642110), (60, 1313688), (72, 1094740), (80, 985266), (90, 875792), (96, 821055), (120, 656844), (127, 620640), (144, 547370), (160, 492633), (180, 437896), (240, 328422), (254, 310320), (288, 273685), (360, 218948), (381, 206880), (431, 182880), (480, 164211), (508, 155160), (635, 124128), (720, 109474), (762, 103440), (862, 91440), (1016, 77580), (1143, 68960), (1270, 62064), (1293, 60960), (1440, 54737), (1524, 51720), (1724, 45720), (1905, 41376), (2032, 38790), (2155, 36576), (2286, 34480), (2540, 31032), (2586, 30480), (3048, 25860), (3448, 22860), (3810, 20688), (3879, 20320), (4064, 19395), (4310, 18288), (4572, 17240), (5080, 15516), (5172, 15240), (5715, 13792), (6096, 12930), (6465, 12192), (6896, 11430), (7620, 10344), (7758, 10160), (8620, 9144)]