20147820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 52428180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 89, 98, 105, 110, 132, 140, 147, 154, 165, 178, 196, 210, 220, 231, 245, 267, 294, 308, 330, 343, 356, 385, 420, 445, 462, 490, 534, 539, 588, 623, 660, 686, 735, 770, 890, 924, 979, 980, 1029, 1068, 1078, 1155, 1246, 1335, 1372, 1470, 1540, 1617, 1715, 1780, 1869, 1958, 2058, 2156, 2310, 2492, 2670, 2695, 2937, 2940, 3115, 3234, 3430, 3738, 3773, 3916, 4116, 4361, 4620, 4895, 5145, 5340, 5390, 5874, 6230, 6468, 6853, 6860, 7476, 7546, 8085, 8722, 9345, 9790, 10290, 10780, 11319, 11748, 12460, 13083, 13706, 14685, 15092, 16170, 17444, 18690, 18865, 19580, 20559, 20580, 21805, 22638, 26166, 27412, 29370, 30527, 32340, 34265, 37380, 37730, 41118, 43610, 45276, 47971, 52332, 56595, 58740, 61054, 65415, 68530, 75460, 82236, 87220, 91581, 95942, 102795, 113190, 122108, 130830, 137060, 143913, 152635, 183162, 191884, 205590, 226380, 239855, 261660, 287826, 305270, 335797, 366324, 411180, 457905, 479710, 575652, 610540, 671594, 719565, 915810, 959420, 1007391, 1343188, 1439130, 1678985, 1831620, 2014782, 2878260, 3357970, 4029564, 5036955, 6715940, 10073910, 20147820]

約数ペア:

[(1, 20147820), (2, 10073910), (3, 6715940), (4, 5036955), (5, 4029564), (6, 3357970), (7, 2878260), (10, 2014782), (11, 1831620), (12, 1678985), (14, 1439130), (15, 1343188), (20, 1007391), (21, 959420), (22, 915810), (28, 719565), (30, 671594), (33, 610540), (35, 575652), (42, 479710), (44, 457905), (49, 411180), (55, 366324), (60, 335797), (66, 305270), (70, 287826), (77, 261660), (84, 239855), (89, 226380), (98, 205590), (105, 191884), (110, 183162), (132, 152635), (140, 143913), (147, 137060), (154, 130830), (165, 122108), (178, 113190), (196, 102795), (210, 95942), (220, 91581), (231, 87220), (245, 82236), (267, 75460), (294, 68530), (308, 65415), (330, 61054), (343, 58740), (356, 56595), (385, 52332), (420, 47971), (445, 45276), (462, 43610), (490, 41118), (534, 37730), (539, 37380), (588, 34265), (623, 32340), (660, 30527), (686, 29370), (735, 27412), (770, 26166), (890, 22638), (924, 21805), (979, 20580), (980, 20559), (1029, 19580), (1068, 18865), (1078, 18690), (1155, 17444), (1246, 16170), (1335, 15092), (1372, 14685), (1470, 13706), (1540, 13083), (1617, 12460), (1715, 11748), (1780, 11319), (1869, 10780), (1958, 10290), (2058, 9790), (2156, 9345), (2310, 8722), (2492, 8085), (2670, 7546), (2695, 7476), (2937, 6860), (2940, 6853), (3115, 6468), (3234, 6230), (3430, 5874), (3738, 5390), (3773, 5340), (3916, 5145), (4116, 4895), (4361, 4620)]