205402120

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1361}}^1$

素因数の和:1404

約数の個数: 128

約数和(自身を含む): 588384000

約数和(自身を除く): 382981880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 343, 385, 392, 440, 490, 539, 616, 686, 770, 980, 1078, 1361, 1372, 1540, 1715, 1960, 2156, 2695, 2722, 2744, 3080, 3430, 3773, 4312, 5390, 5444, 6805, 6860, 7546, 9527, 10780, 10888, 13610, 13720, 14971, 15092, 18865, 19054, 21560, 27220, 29942, 30184, 37730, 38108, 47635, 54440, 59884, 66689, 74855, 75460, 76216, 95270, 104797, 119768, 133378, 149710, 150920, 190540, 209594, 266756, 299420, 333445, 381080, 419188, 466823, 523985, 533512, 598840, 666890, 733579, 838376, 933646, 1047970, 1333780, 1467158, 1867292, 2095940, 2334115, 2667560, 2934316, 3667895, 3734584, 4191880, 4668230, 5135053, 5868632, 7335790, 9336460, 10270106, 14671580, 18672920, 20540212, 25675265, 29343160, 41080424, 51350530, 102701060, 205402120]

約数ペア:

[(1, 205402120), (2, 102701060), (4, 51350530), (5, 41080424), (7, 29343160), (8, 25675265), (10, 20540212), (11, 18672920), (14, 14671580), (20, 10270106), (22, 9336460), (28, 7335790), (35, 5868632), (40, 5135053), (44, 4668230), (49, 4191880), (55, 3734584), (56, 3667895), (70, 2934316), (77, 2667560), (88, 2334115), (98, 2095940), (110, 1867292), (140, 1467158), (154, 1333780), (196, 1047970), (220, 933646), (245, 838376), (280, 733579), (308, 666890), (343, 598840), (385, 533512), (392, 523985), (440, 466823), (490, 419188), (539, 381080), (616, 333445), (686, 299420), (770, 266756), (980, 209594), (1078, 190540), (1361, 150920), (1372, 149710), (1540, 133378), (1715, 119768), (1960, 104797), (2156, 95270), (2695, 76216), (2722, 75460), (2744, 74855), (3080, 66689), (3430, 59884), (3773, 54440), (4312, 47635), (5390, 38108), (5444, 37730), (6805, 30184), (6860, 29942), (7546, 27220), (9527, 21560), (10780, 19054), (10888, 18865), (13610, 15092), (13720, 14971)]