205415280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:848

約数の個数: 240

約数和(自身を含む): 804323520

約数和(自身を除く): 598908240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 53, 56, 60, 63, 70, 72, 80, 84, 90, 105, 106, 112, 120, 126, 140, 144, 159, 168, 180, 210, 212, 240, 252, 265, 280, 315, 318, 336, 360, 371, 420, 424, 477, 504, 530, 560, 630, 636, 720, 742, 769, 795, 840, 848, 954, 1008, 1060, 1113, 1260, 1272, 1484, 1538, 1590, 1680, 1855, 1908, 2120, 2226, 2307, 2385, 2520, 2544, 2968, 3076, 3180, 3339, 3710, 3816, 3845, 4240, 4452, 4614, 4770, 5040, 5383, 5565, 5936, 6152, 6360, 6678, 6921, 7420, 7632, 7690, 8904, 9228, 9540, 10766, 11130, 11535, 12304, 12720, 13356, 13842, 14840, 15380, 16149, 16695, 17808, 18456, 19080, 21532, 22260, 23070, 26712, 26915, 27684, 29680, 30760, 32298, 33390, 34605, 36912, 38160, 40757, 43064, 44520, 46140, 48447, 53424, 53830, 55368, 61520, 64596, 66780, 69210, 80745, 81514, 86128, 89040, 92280, 96894, 107660, 110736, 122271, 129192, 133560, 138420, 161490, 163028, 184560, 193788, 203785, 215320, 242235, 244542, 258384, 267120, 276840, 285299, 322980, 326056, 366813, 387576, 407570, 430640, 484470, 489084, 553680, 570598, 611355, 645960, 652112, 733626, 775152, 815140, 855897, 968940, 978168, 1141196, 1222710, 1291920, 1426495, 1467252, 1630280, 1711794, 1834065, 1937880, 1956336, 2282392, 2445420, 2567691, 2852990, 2934504, 3260560, 3423588, 3668130, 3875760, 4279485, 4564784, 4890840, 5135382, 5705980, 5869008, 6847176, 7336260, 8558970, 9781680, 10270764, 11411960, 12838455, 13694352, 14672520, 17117940, 20541528, 22823920, 25676910, 29345040, 34235880, 41083056, 51353820, 68471760, 102707640, 205415280]

約数ペア:

[(1, 205415280), (2, 102707640), (3, 68471760), (4, 51353820), (5, 41083056), (6, 34235880), (7, 29345040), (8, 25676910), (9, 22823920), (10, 20541528), (12, 17117940), (14, 14672520), (15, 13694352), (16, 12838455), (18, 11411960), (20, 10270764), (21, 9781680), (24, 8558970), (28, 7336260), (30, 6847176), (35, 5869008), (36, 5705980), (40, 5135382), (42, 4890840), (45, 4564784), (48, 4279485), (53, 3875760), (56, 3668130), (60, 3423588), (63, 3260560), (70, 2934504), (72, 2852990), (80, 2567691), (84, 2445420), (90, 2282392), (105, 1956336), (106, 1937880), (112, 1834065), (120, 1711794), (126, 1630280), (140, 1467252), (144, 1426495), (159, 1291920), (168, 1222710), (180, 1141196), (210, 978168), (212, 968940), (240, 855897), (252, 815140), (265, 775152), (280, 733626), (315, 652112), (318, 645960), (336, 611355), (360, 570598), (371, 553680), (420, 489084), (424, 484470), (477, 430640), (504, 407570), (530, 387576), (560, 366813), (630, 326056), (636, 322980), (720, 285299), (742, 276840), (769, 267120), (795, 258384), (840, 244542), (848, 242235), (954, 215320), (1008, 203785), (1060, 193788), (1113, 184560), (1260, 163028), (1272, 161490), (1484, 138420), (1538, 133560), (1590, 129192), (1680, 122271), (1855, 110736), (1908, 107660), (2120, 96894), (2226, 92280), (2307, 89040), (2385, 86128), (2520, 81514), (2544, 80745), (2968, 69210), (3076, 66780), (3180, 64596), (3339, 61520), (3710, 55368), (3816, 53830), (3845, 53424), (4240, 48447), (4452, 46140), (4614, 44520), (4770, 43064), (5040, 40757), (5383, 38160), (5565, 36912), (5936, 34605), (6152, 33390), (6360, 32298), (6678, 30760), (6921, 29680), (7420, 27684), (7632, 26915), (7690, 26712), (8904, 23070), (9228, 22260), (9540, 21532), (10766, 19080), (11130, 18456), (11535, 17808), (12304, 16695), (12720, 16149), (13356, 15380), (13842, 14840)]