28884240

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1$

素因数の和:558

約数の個数: 240

約数和(自身を含む): 121170816

約数和(自身を除く): 92286576

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 385, 396, 420, 440, 462, 495, 504, 521, 528, 560, 616, 630, 660, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1042, 1155, 1232, 1260, 1320, 1386, 1540, 1563, 1584, 1680, 1848, 1980, 2084, 2310, 2520, 2605, 2640, 2772, 3080, 3126, 3465, 3647, 3696, 3960, 4168, 4620, 4689, 5040, 5210, 5544, 5731, 6160, 6252, 6930, 7294, 7815, 7920, 8336, 9240, 9378, 10420, 10941, 11088, 11462, 12504, 13860, 14588, 15630, 17193, 18235, 18480, 18756, 20840, 21882, 22924, 23445, 25008, 27720, 28655, 29176, 31260, 32823, 34386, 36470, 37512, 40117, 41680, 43764, 45848, 46890, 51579, 54705, 55440, 57310, 58352, 62520, 65646, 68772, 72940, 75024, 80234, 85965, 87528, 91696, 93780, 103158, 109410, 114620, 120351, 125040, 131292, 137544, 145880, 160468, 164115, 171930, 175056, 187560, 200585, 206316, 218820, 229240, 240702, 257895, 262584, 275088, 291760, 320936, 328230, 343860, 361053, 375120, 401170, 412632, 437640, 458480, 481404, 515790, 525168, 601755, 641872, 656460, 687720, 722106, 802340, 825264, 875280, 962808, 1031580, 1203510, 1312920, 1375440, 1444212, 1604680, 1805265, 1925616, 2063160, 2407020, 2625840, 2888424, 3209360, 3610530, 4126320, 4814040, 5776848, 7221060, 9628080, 14442120, 28884240]

約数ペア:

[(1, 28884240), (2, 14442120), (3, 9628080), (4, 7221060), (5, 5776848), (6, 4814040), (7, 4126320), (8, 3610530), (9, 3209360), (10, 2888424), (11, 2625840), (12, 2407020), (14, 2063160), (15, 1925616), (16, 1805265), (18, 1604680), (20, 1444212), (21, 1375440), (22, 1312920), (24, 1203510), (28, 1031580), (30, 962808), (33, 875280), (35, 825264), (36, 802340), (40, 722106), (42, 687720), (44, 656460), (45, 641872), (48, 601755), (55, 525168), (56, 515790), (60, 481404), (63, 458480), (66, 437640), (70, 412632), (72, 401170), (77, 375120), (80, 361053), (84, 343860), (88, 328230), (90, 320936), (99, 291760), (105, 275088), (110, 262584), (112, 257895), (120, 240702), (126, 229240), (132, 218820), (140, 206316), (144, 200585), (154, 187560), (165, 175056), (168, 171930), (176, 164115), (180, 160468), (198, 145880), (210, 137544), (220, 131292), (231, 125040), (240, 120351), (252, 114620), (264, 109410), (280, 103158), (308, 93780), (315, 91696), (330, 87528), (336, 85965), (360, 80234), (385, 75024), (396, 72940), (420, 68772), (440, 65646), (462, 62520), (495, 58352), (504, 57310), (521, 55440), (528, 54705), (560, 51579), (616, 46890), (630, 45848), (660, 43764), (693, 41680), (720, 40117), (770, 37512), (792, 36470), (840, 34386), (880, 32823), (924, 31260), (990, 29176), (1008, 28655), (1042, 27720), (1155, 25008), (1232, 23445), (1260, 22924), (1320, 21882), (1386, 20840), (1540, 18756), (1563, 18480), (1584, 18235), (1680, 17193), (1848, 15630), (1980, 14588), (2084, 13860), (2310, 12504), (2520, 11462), (2605, 11088), (2640, 10941), (2772, 10420), (3080, 9378), (3126, 9240), (3465, 8336), (3647, 7920), (3696, 7815), (3960, 7294), (4168, 6930), (4620, 6252), (4689, 6160), (5040, 5731), (5210, 5544)]