421209880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:370

約数の個数: 192

約数和(自身を含む): 1211172480

約数和(自身を除く): 789962600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 61, 65, 70, 91, 98, 104, 122, 130, 140, 182, 196, 244, 245, 260, 271, 280, 305, 364, 392, 427, 455, 488, 490, 520, 542, 610, 637, 728, 793, 854, 910, 980, 1084, 1220, 1274, 1355, 1586, 1708, 1820, 1897, 1960, 2135, 2168, 2440, 2548, 2710, 2989, 3172, 3185, 3416, 3523, 3640, 3794, 3965, 4270, 5096, 5420, 5551, 5978, 6344, 6370, 7046, 7588, 7930, 8540, 9485, 10840, 11102, 11956, 12740, 13279, 14092, 14945, 15176, 15860, 16531, 17080, 17615, 18970, 22204, 23912, 24661, 25480, 26558, 27755, 28184, 29890, 31720, 33062, 35230, 37940, 38857, 44408, 49322, 53116, 55510, 59780, 66124, 66395, 70460, 75880, 77714, 82655, 98644, 106232, 111020, 115717, 119560, 123305, 132248, 132790, 140920, 155428, 165310, 172627, 194285, 197288, 214903, 222040, 231434, 246610, 265580, 310856, 330620, 345254, 388570, 429806, 462868, 493220, 531160, 578585, 661240, 690508, 777140, 810019, 859612, 863135, 925736, 986440, 1074515, 1157170, 1381016, 1504321, 1554280, 1620038, 1719224, 1726270, 2149030, 2314340, 3008642, 3240076, 3452540, 4050095, 4298060, 4628680, 6017284, 6480152, 6905080, 7521605, 8100190, 8596120, 10530247, 12034568, 15043210, 16200380, 21060494, 30086420, 32400760, 42120988, 52651235, 60172840, 84241976, 105302470, 210604940, 421209880]

約数ペア:

[(1, 421209880), (2, 210604940), (4, 105302470), (5, 84241976), (7, 60172840), (8, 52651235), (10, 42120988), (13, 32400760), (14, 30086420), (20, 21060494), (26, 16200380), (28, 15043210), (35, 12034568), (40, 10530247), (49, 8596120), (52, 8100190), (56, 7521605), (61, 6905080), (65, 6480152), (70, 6017284), (91, 4628680), (98, 4298060), (104, 4050095), (122, 3452540), (130, 3240076), (140, 3008642), (182, 2314340), (196, 2149030), (244, 1726270), (245, 1719224), (260, 1620038), (271, 1554280), (280, 1504321), (305, 1381016), (364, 1157170), (392, 1074515), (427, 986440), (455, 925736), (488, 863135), (490, 859612), (520, 810019), (542, 777140), (610, 690508), (637, 661240), (728, 578585), (793, 531160), (854, 493220), (910, 462868), (980, 429806), (1084, 388570), (1220, 345254), (1274, 330620), (1355, 310856), (1586, 265580), (1708, 246610), (1820, 231434), (1897, 222040), (1960, 214903), (2135, 197288), (2168, 194285), (2440, 172627), (2548, 165310), (2710, 155428), (2989, 140920), (3172, 132790), (3185, 132248), (3416, 123305), (3523, 119560), (3640, 115717), (3794, 111020), (3965, 106232), (4270, 98644), (5096, 82655), (5420, 77714), (5551, 75880), (5978, 70460), (6344, 66395), (6370, 66124), (7046, 59780), (7588, 55510), (7930, 53116), (8540, 49322), (9485, 44408), (10840, 38857), (11102, 37940), (11956, 35230), (12740, 33062), (13279, 31720), (14092, 29890), (14945, 28184), (15176, 27755), (15860, 26558), (16531, 25480), (17080, 24661), (17615, 23912), (18970, 22204)]