81277560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{827}}^1$

素因数の和:867

約数の個数: 256

約数和(自身を含む): 333849600

約数和(自身を除く): 252572040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 52, 54, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 108, 117, 120, 126, 130, 135, 140, 156, 168, 180, 182, 189, 195, 210, 216, 234, 252, 260, 270, 273, 280, 312, 315, 351, 360, 364, 378, 390, 420, 455, 468, 504, 520, 540, 546, 585, 630, 702, 728, 756, 780, 819, 827, 840, 910, 936, 945, 1080, 1092, 1170, 1260, 1365, 1404, 1512, 1560, 1638, 1654, 1755, 1820, 1890, 2184, 2340, 2457, 2481, 2520, 2730, 2808, 3276, 3308, 3510, 3640, 3780, 4095, 4135, 4680, 4914, 4962, 5460, 5789, 6552, 6616, 7020, 7443, 7560, 8190, 8270, 9828, 9924, 10751, 10920, 11578, 12285, 12405, 14040, 14886, 16380, 16540, 17367, 19656, 19848, 21502, 22329, 23156, 24570, 24810, 28945, 29772, 32253, 32760, 33080, 34734, 37215, 43004, 44658, 46312, 49140, 49620, 52101, 53755, 57890, 59544, 64506, 69468, 74430, 75257, 86008, 86835, 89316, 96759, 98280, 99240, 104202, 107510, 111645, 115780, 129012, 138936, 148860, 150514, 156303, 161265, 173670, 178632, 193518, 208404, 215020, 223290, 225771, 231560, 258024, 260505, 290277, 297720, 301028, 312606, 322530, 347340, 376285, 387036, 416808, 430040, 446580, 451542, 483795, 521010, 580554, 602056, 625212, 645060, 677313, 694680, 752570, 774072, 781515, 893160, 903084, 967590, 1042020, 1128855, 1161108, 1250424, 1290120, 1354626, 1451385, 1505140, 1563030, 1806168, 1935180, 2031939, 2084040, 2257710, 2322216, 2709252, 2902770, 3010280, 3126060, 3386565, 3870360, 4063878, 4515420, 5418504, 5805540, 6252120, 6773130, 8127756, 9030840, 10159695, 11611080, 13546260, 16255512, 20319390, 27092520, 40638780, 81277560]

約数ペア:

[(1, 81277560), (2, 40638780), (3, 27092520), (4, 20319390), (5, 16255512), (6, 13546260), (7, 11611080), (8, 10159695), (9, 9030840), (10, 8127756), (12, 6773130), (13, 6252120), (14, 5805540), (15, 5418504), (18, 4515420), (20, 4063878), (21, 3870360), (24, 3386565), (26, 3126060), (27, 3010280), (28, 2902770), (30, 2709252), (35, 2322216), (36, 2257710), (39, 2084040), (40, 2031939), (42, 1935180), (45, 1806168), (52, 1563030), (54, 1505140), (56, 1451385), (60, 1354626), (63, 1290120), (65, 1250424), (70, 1161108), (72, 1128855), (78, 1042020), (84, 967590), (90, 903084), (91, 893160), (104, 781515), (105, 774072), (108, 752570), (117, 694680), (120, 677313), (126, 645060), (130, 625212), (135, 602056), (140, 580554), (156, 521010), (168, 483795), (180, 451542), (182, 446580), (189, 430040), (195, 416808), (210, 387036), (216, 376285), (234, 347340), (252, 322530), (260, 312606), (270, 301028), (273, 297720), (280, 290277), (312, 260505), (315, 258024), (351, 231560), (360, 225771), (364, 223290), (378, 215020), (390, 208404), (420, 193518), (455, 178632), (468, 173670), (504, 161265), (520, 156303), (540, 150514), (546, 148860), (585, 138936), (630, 129012), (702, 115780), (728, 111645), (756, 107510), (780, 104202), (819, 99240), (827, 98280), (840, 96759), (910, 89316), (936, 86835), (945, 86008), (1080, 75257), (1092, 74430), (1170, 69468), (1260, 64506), (1365, 59544), (1404, 57890), (1512, 53755), (1560, 52101), (1638, 49620), (1654, 49140), (1755, 46312), (1820, 44658), (1890, 43004), (2184, 37215), (2340, 34734), (2457, 33080), (2481, 32760), (2520, 32253), (2730, 29772), (2808, 28945), (3276, 24810), (3308, 24570), (3510, 23156), (3640, 22329), (3780, 21502), (4095, 19848), (4135, 19656), (4680, 17367), (4914, 16540), (4962, 16380), (5460, 14886), (5789, 14040), (6552, 12405), (6616, 12285), (7020, 11578), (7443, 10920), (7560, 10751), (8190, 9924), (8270, 9828)]