1820251840

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2857}}^1$

素因数の和:3066

約数の個数: 112

約数和(自身を含む): 4756306464

約数和(自身を除く): 2936054624

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 181, 220, 320, 352, 362, 440, 704, 724, 880, 905, 1448, 1760, 1810, 1991, 2857, 2896, 3520, 3620, 3982, 5714, 5792, 7240, 7964, 9955, 11428, 11584, 14285, 14480, 15928, 19910, 22856, 28570, 28960, 31427, 31856, 39820, 45712, 57140, 57920, 62854, 63712, 79640, 91424, 114280, 125708, 127424, 157135, 159280, 182848, 228560, 251416, 314270, 318560, 457120, 502832, 517117, 628540, 637120, 914240, 1005664, 1034234, 1257080, 2011328, 2068468, 2514160, 2585585, 4136936, 5028320, 5171170, 5688287, 8273872, 10056640, 10342340, 11376574, 16547744, 20684680, 22753148, 28441435, 33095488, 41369360, 45506296, 56882870, 82738720, 91012592, 113765740, 165477440, 182025184, 227531480, 364050368, 455062960, 910125920, 1820251840]

約数ペア:

[(1, 1820251840), (2, 910125920), (4, 455062960), (5, 364050368), (8, 227531480), (10, 182025184), (11, 165477440), (16, 113765740), (20, 91012592), (22, 82738720), (32, 56882870), (40, 45506296), (44, 41369360), (55, 33095488), (64, 28441435), (80, 22753148), (88, 20684680), (110, 16547744), (160, 11376574), (176, 10342340), (181, 10056640), (220, 8273872), (320, 5688287), (352, 5171170), (362, 5028320), (440, 4136936), (704, 2585585), (724, 2514160), (880, 2068468), (905, 2011328), (1448, 1257080), (1760, 1034234), (1810, 1005664), (1991, 914240), (2857, 637120), (2896, 628540), (3520, 517117), (3620, 502832), (3982, 457120), (5714, 318560), (5792, 314270), (7240, 251416), (7964, 228560), (9955, 182848), (11428, 159280), (11584, 157135), (14285, 127424), (14480, 125708), (15928, 114280), (19910, 91424), (22856, 79640), (28570, 63712), (28960, 62854), (31427, 57920), (31856, 57140), (39820, 45712)]