256530960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2213}}^1$

素因数の和:2262

約数の個数: 240

約数和(自身を含む): 1027862784

約数和(自身を除く): 771331824

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 48, 56, 60, 63, 69, 70, 72, 80, 84, 90, 92, 105, 112, 115, 120, 126, 138, 140, 144, 161, 168, 180, 184, 207, 210, 230, 240, 252, 276, 280, 315, 322, 336, 345, 360, 368, 414, 420, 460, 483, 504, 552, 560, 630, 644, 690, 720, 805, 828, 840, 920, 966, 1008, 1035, 1104, 1260, 1288, 1380, 1449, 1610, 1656, 1680, 1840, 1932, 2070, 2213, 2415, 2520, 2576, 2760, 2898, 3220, 3312, 3864, 4140, 4426, 4830, 5040, 5520, 5796, 6440, 6639, 7245, 7728, 8280, 8852, 9660, 11065, 11592, 12880, 13278, 14490, 15491, 16560, 17704, 19320, 19917, 22130, 23184, 26556, 28980, 30982, 33195, 35408, 38640, 39834, 44260, 46473, 50899, 53112, 57960, 61964, 66390, 77455, 79668, 88520, 92946, 99585, 101798, 106224, 115920, 123928, 132780, 139419, 152697, 154910, 159336, 177040, 185892, 199170, 203596, 232365, 247856, 254495, 265560, 278838, 305394, 309820, 318672, 356293, 371784, 398340, 407192, 458091, 464730, 508990, 531120, 557676, 610788, 619640, 697095, 712586, 743568, 763485, 796680, 814384, 916182, 929460, 1017980, 1068879, 1115352, 1221576, 1239280, 1394190, 1425172, 1526970, 1593360, 1781465, 1832364, 1858920, 2035960, 2137758, 2230704, 2290455, 2443152, 2788380, 2850344, 3053940, 3206637, 3562930, 3664728, 3717840, 4071920, 4275516, 4580910, 5344395, 5576760, 5700688, 6107880, 6413274, 7125860, 7329456, 8551032, 9161820, 10688790, 11153520, 12215760, 12826548, 14251720, 16033185, 17102064, 18323640, 21377580, 25653096, 28503440, 32066370, 36647280, 42755160, 51306192, 64132740, 85510320, 128265480, 256530960]

約数ペア:

[(1, 256530960), (2, 128265480), (3, 85510320), (4, 64132740), (5, 51306192), (6, 42755160), (7, 36647280), (8, 32066370), (9, 28503440), (10, 25653096), (12, 21377580), (14, 18323640), (15, 17102064), (16, 16033185), (18, 14251720), (20, 12826548), (21, 12215760), (23, 11153520), (24, 10688790), (28, 9161820), (30, 8551032), (35, 7329456), (36, 7125860), (40, 6413274), (42, 6107880), (45, 5700688), (46, 5576760), (48, 5344395), (56, 4580910), (60, 4275516), (63, 4071920), (69, 3717840), (70, 3664728), (72, 3562930), (80, 3206637), (84, 3053940), (90, 2850344), (92, 2788380), (105, 2443152), (112, 2290455), (115, 2230704), (120, 2137758), (126, 2035960), (138, 1858920), (140, 1832364), (144, 1781465), (161, 1593360), (168, 1526970), (180, 1425172), (184, 1394190), (207, 1239280), (210, 1221576), (230, 1115352), (240, 1068879), (252, 1017980), (276, 929460), (280, 916182), (315, 814384), (322, 796680), (336, 763485), (345, 743568), (360, 712586), (368, 697095), (414, 619640), (420, 610788), (460, 557676), (483, 531120), (504, 508990), (552, 464730), (560, 458091), (630, 407192), (644, 398340), (690, 371784), (720, 356293), (805, 318672), (828, 309820), (840, 305394), (920, 278838), (966, 265560), (1008, 254495), (1035, 247856), (1104, 232365), (1260, 203596), (1288, 199170), (1380, 185892), (1449, 177040), (1610, 159336), (1656, 154910), (1680, 152697), (1840, 139419), (1932, 132780), (2070, 123928), (2213, 115920), (2415, 106224), (2520, 101798), (2576, 99585), (2760, 92946), (2898, 88520), (3220, 79668), (3312, 77455), (3864, 66390), (4140, 61964), (4426, 57960), (4830, 53112), (5040, 50899), (5520, 46473), (5796, 44260), (6440, 39834), (6639, 38640), (7245, 35408), (7728, 33195), (8280, 30982), (8852, 28980), (9660, 26556), (11065, 23184), (11592, 22130), (12880, 19917), (13278, 19320), (14490, 17704), (15491, 16560)]