28757520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3631}}^1$

素因数の和:3661

約数の個数: 120

約数和(自身を含む): 105386112

約数和(自身を除く): 76628592

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3631, 3960, 7262, 7920, 10893, 14524, 18155, 21786, 29048, 32679, 36310, 39941, 43572, 54465, 58096, 65358, 72620, 79882, 87144, 108930, 119823, 130716, 145240, 159764, 163395, 174288, 199705, 217860, 239646, 261432, 290480, 319528, 326790, 359469, 399410, 435720, 479292, 522864, 599115, 639056, 653580, 718938, 798820, 871440, 958584, 1198230, 1307160, 1437876, 1597640, 1797345, 1917168, 2396460, 2614320, 2875752, 3195280, 3594690, 4792920, 5751504, 7189380, 9585840, 14378760, 28757520]

約数ペア:

[(1, 28757520), (2, 14378760), (3, 9585840), (4, 7189380), (5, 5751504), (6, 4792920), (8, 3594690), (9, 3195280), (10, 2875752), (11, 2614320), (12, 2396460), (15, 1917168), (16, 1797345), (18, 1597640), (20, 1437876), (22, 1307160), (24, 1198230), (30, 958584), (33, 871440), (36, 798820), (40, 718938), (44, 653580), (45, 639056), (48, 599115), (55, 522864), (60, 479292), (66, 435720), (72, 399410), (80, 359469), (88, 326790), (90, 319528), (99, 290480), (110, 261432), (120, 239646), (132, 217860), (144, 199705), (165, 174288), (176, 163395), (180, 159764), (198, 145240), (220, 130716), (240, 119823), (264, 108930), (330, 87144), (360, 79882), (396, 72620), (440, 65358), (495, 58096), (528, 54465), (660, 43572), (720, 39941), (792, 36310), (880, 32679), (990, 29048), (1320, 21786), (1584, 18155), (1980, 14524), (2640, 10893), (3631, 7920), (3960, 7262)]