280407400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 288

約数和(自身を含む): 854945280

約数和(自身を除く): 574537880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 31, 35, 40, 49, 50, 52, 56, 62, 65, 70, 71, 91, 98, 100, 104, 124, 130, 140, 142, 155, 175, 182, 196, 200, 217, 245, 248, 260, 280, 284, 310, 325, 350, 355, 364, 392, 403, 434, 455, 490, 497, 520, 568, 620, 637, 650, 700, 710, 728, 775, 806, 868, 910, 923, 980, 994, 1085, 1225, 1240, 1274, 1300, 1400, 1420, 1519, 1550, 1612, 1736, 1775, 1820, 1846, 1960, 1988, 2015, 2170, 2201, 2275, 2450, 2485, 2548, 2600, 2821, 2840, 3038, 3100, 3185, 3224, 3479, 3550, 3640, 3692, 3976, 4030, 4340, 4402, 4550, 4615, 4900, 4970, 5096, 5425, 5642, 6076, 6200, 6370, 6461, 6958, 7100, 7384, 7595, 8060, 8680, 8804, 9100, 9230, 9800, 9940, 10075, 10850, 11005, 11284, 12152, 12425, 12740, 12922, 13916, 14105, 14200, 15190, 15407, 15925, 16120, 17395, 17608, 18200, 18460, 19747, 19880, 20150, 21700, 22010, 22568, 23075, 24850, 25480, 25844, 27832, 28210, 28613, 30380, 30814, 31850, 32305, 34790, 36920, 37975, 39494, 40300, 43400, 44020, 45227, 46150, 49700, 51688, 55025, 56420, 57226, 60760, 61628, 63700, 64610, 69580, 70525, 75950, 77035, 78988, 80600, 86975, 88040, 90454, 92300, 98735, 99400, 107849, 110050, 112840, 114452, 123256, 127400, 129220, 139160, 141050, 143065, 151900, 154070, 157976, 161525, 173950, 180908, 184600, 197470, 200291, 215698, 220100, 226135, 228904, 258440, 282100, 286130, 303800, 308140, 323050, 347900, 361816, 385175, 394940, 400582, 431396, 440200, 452270, 493675, 539245, 564200, 572260, 616280, 646100, 695800, 715325, 770350, 789880, 801164, 862792, 904540, 987350, 1001455, 1078490, 1130675, 1144520, 1292200, 1402037, 1430650, 1540700, 1602328, 1809080, 1974700, 2002910, 2156980, 2261350, 2696225, 2804074, 2861300, 3081400, 3949400, 4005820, 4313960, 4522700, 5007275, 5392450, 5608148, 5722600, 7010185, 8011640, 9045400, 10014550, 10784900, 11216296, 14020370, 20029100, 21569800, 28040740, 35050925, 40058200, 56081480, 70101850, 140203700, 280407400]

約数ペア:

[(1, 280407400), (2, 140203700), (4, 70101850), (5, 56081480), (7, 40058200), (8, 35050925), (10, 28040740), (13, 21569800), (14, 20029100), (20, 14020370), (25, 11216296), (26, 10784900), (28, 10014550), (31, 9045400), (35, 8011640), (40, 7010185), (49, 5722600), (50, 5608148), (52, 5392450), (56, 5007275), (62, 4522700), (65, 4313960), (70, 4005820), (71, 3949400), (91, 3081400), (98, 2861300), (100, 2804074), (104, 2696225), (124, 2261350), (130, 2156980), (140, 2002910), (142, 1974700), (155, 1809080), (175, 1602328), (182, 1540700), (196, 1430650), (200, 1402037), (217, 1292200), (245, 1144520), (248, 1130675), (260, 1078490), (280, 1001455), (284, 987350), (310, 904540), (325, 862792), (350, 801164), (355, 789880), (364, 770350), (392, 715325), (403, 695800), (434, 646100), (455, 616280), (490, 572260), (497, 564200), (520, 539245), (568, 493675), (620, 452270), (637, 440200), (650, 431396), (700, 400582), (710, 394940), (728, 385175), (775, 361816), (806, 347900), (868, 323050), (910, 308140), (923, 303800), (980, 286130), (994, 282100), (1085, 258440), (1225, 228904), (1240, 226135), (1274, 220100), (1300, 215698), (1400, 200291), (1420, 197470), (1519, 184600), (1550, 180908), (1612, 173950), (1736, 161525), (1775, 157976), (1820, 154070), (1846, 151900), (1960, 143065), (1988, 141050), (2015, 139160), (2170, 129220), (2201, 127400), (2275, 123256), (2450, 114452), (2485, 112840), (2548, 110050), (2600, 107849), (2821, 99400), (2840, 98735), (3038, 92300), (3100, 90454), (3185, 88040), (3224, 86975), (3479, 80600), (3550, 78988), (3640, 77035), (3692, 75950), (3976, 70525), (4030, 69580), (4340, 64610), (4402, 63700), (4550, 61628), (4615, 60760), (4900, 57226), (4970, 56420), (5096, 55025), (5425, 51688), (5642, 49700), (6076, 46150), (6200, 45227), (6370, 44020), (6461, 43400), (6958, 40300), (7100, 39494), (7384, 37975), (7595, 36920), (8060, 34790), (8680, 32305), (8804, 31850), (9100, 30814), (9230, 30380), (9800, 28613), (9940, 28210), (10075, 27832), (10850, 25844), (11005, 25480), (11284, 24850), (12152, 23075), (12425, 22568), (12740, 22010), (12922, 21700), (13916, 20150), (14105, 19880), (14200, 19747), (15190, 18460), (15407, 18200), (15925, 17608), (16120, 17395)]