81998280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2503}}^1$

素因数の和:2540

約数の個数: 192

約数和(自身を含む): 328124160

約数和(自身を除く): 246125880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 360, 364, 390, 420, 455, 468, 504, 520, 546, 585, 630, 728, 780, 819, 840, 910, 936, 1092, 1170, 1260, 1365, 1560, 1638, 1820, 2184, 2340, 2503, 2520, 2730, 3276, 3640, 4095, 4680, 5006, 5460, 6552, 7509, 8190, 10012, 10920, 12515, 15018, 16380, 17521, 20024, 22527, 25030, 30036, 32539, 32760, 35042, 37545, 45054, 50060, 52563, 60072, 65078, 70084, 75090, 87605, 90108, 97617, 100120, 105126, 112635, 130156, 140168, 150180, 157689, 162695, 175210, 180216, 195234, 210252, 225270, 227773, 260312, 262815, 292851, 300360, 315378, 325390, 350420, 390468, 420504, 450540, 455546, 488085, 525630, 585702, 630756, 650780, 683319, 700840, 780936, 788445, 901080, 911092, 976170, 1051260, 1138865, 1171404, 1261512, 1301560, 1366638, 1464255, 1576890, 1822184, 1952340, 2049957, 2102520, 2277730, 2342808, 2733276, 2928510, 3153780, 3416595, 3904680, 4099914, 4555460, 5466552, 5857020, 6307560, 6833190, 8199828, 9110920, 10249785, 11714040, 13666380, 16399656, 20499570, 27332760, 40999140, 81998280]

約数ペア:

[(1, 81998280), (2, 40999140), (3, 27332760), (4, 20499570), (5, 16399656), (6, 13666380), (7, 11714040), (8, 10249785), (9, 9110920), (10, 8199828), (12, 6833190), (13, 6307560), (14, 5857020), (15, 5466552), (18, 4555460), (20, 4099914), (21, 3904680), (24, 3416595), (26, 3153780), (28, 2928510), (30, 2733276), (35, 2342808), (36, 2277730), (39, 2102520), (40, 2049957), (42, 1952340), (45, 1822184), (52, 1576890), (56, 1464255), (60, 1366638), (63, 1301560), (65, 1261512), (70, 1171404), (72, 1138865), (78, 1051260), (84, 976170), (90, 911092), (91, 901080), (104, 788445), (105, 780936), (117, 700840), (120, 683319), (126, 650780), (130, 630756), (140, 585702), (156, 525630), (168, 488085), (180, 455546), (182, 450540), (195, 420504), (210, 390468), (234, 350420), (252, 325390), (260, 315378), (273, 300360), (280, 292851), (312, 262815), (315, 260312), (360, 227773), (364, 225270), (390, 210252), (420, 195234), (455, 180216), (468, 175210), (504, 162695), (520, 157689), (546, 150180), (585, 140168), (630, 130156), (728, 112635), (780, 105126), (819, 100120), (840, 97617), (910, 90108), (936, 87605), (1092, 75090), (1170, 70084), (1260, 65078), (1365, 60072), (1560, 52563), (1638, 50060), (1820, 45054), (2184, 37545), (2340, 35042), (2503, 32760), (2520, 32539), (2730, 30036), (3276, 25030), (3640, 22527), (4095, 20024), (4680, 17521), (5006, 16380), (5460, 15018), (6552, 12515), (7509, 10920), (8190, 10012)]