20854080

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1$

素因数の和:593

約数の個数: 168

約数和(自身を含む): 77385672

約数和(自身を除く): 56531592

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 360, 390, 416, 468, 480, 520, 557, 576, 585, 624, 720, 780, 832, 936, 960, 1040, 1114, 1170, 1248, 1440, 1560, 1671, 1872, 2080, 2228, 2340, 2496, 2785, 2880, 3120, 3342, 3744, 4160, 4456, 4680, 5013, 5570, 6240, 6684, 7241, 7488, 8355, 8912, 9360, 10026, 11140, 12480, 13368, 14482, 16710, 17824, 18720, 20052, 21723, 22280, 25065, 26736, 28964, 33420, 35648, 36205, 37440, 40104, 43446, 44560, 50130, 53472, 57928, 65169, 66840, 72410, 80208, 86892, 89120, 100260, 106944, 108615, 115856, 130338, 133680, 144820, 160416, 173784, 178240, 200520, 217230, 231712, 260676, 267360, 289640, 320832, 325845, 347568, 401040, 434460, 463424, 521352, 534720, 579280, 651690, 695136, 802080, 868920, 1042704, 1158560, 1303380, 1390272, 1604160, 1737840, 2085408, 2317120, 2606760, 3475680, 4170816, 5213520, 6951360, 10427040, 20854080]

約数ペア:

[(1, 20854080), (2, 10427040), (3, 6951360), (4, 5213520), (5, 4170816), (6, 3475680), (8, 2606760), (9, 2317120), (10, 2085408), (12, 1737840), (13, 1604160), (15, 1390272), (16, 1303380), (18, 1158560), (20, 1042704), (24, 868920), (26, 802080), (30, 695136), (32, 651690), (36, 579280), (39, 534720), (40, 521352), (45, 463424), (48, 434460), (52, 401040), (60, 347568), (64, 325845), (65, 320832), (72, 289640), (78, 267360), (80, 260676), (90, 231712), (96, 217230), (104, 200520), (117, 178240), (120, 173784), (130, 160416), (144, 144820), (156, 133680), (160, 130338), (180, 115856), (192, 108615), (195, 106944), (208, 100260), (234, 89120), (240, 86892), (260, 80208), (288, 72410), (312, 66840), (320, 65169), (360, 57928), (390, 53472), (416, 50130), (468, 44560), (480, 43446), (520, 40104), (557, 37440), (576, 36205), (585, 35648), (624, 33420), (720, 28964), (780, 26736), (832, 25065), (936, 22280), (960, 21723), (1040, 20052), (1114, 18720), (1170, 17824), (1248, 16710), (1440, 14482), (1560, 13368), (1671, 12480), (1872, 11140), (2080, 10026), (2228, 9360), (2340, 8912), (2496, 8355), (2785, 7488), (2880, 7241), (3120, 6684), (3342, 6240), (3744, 5570), (4160, 5013), (4456, 4680)]