28989840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 160

約数和(自身を含む): 99993600

約数和(自身を除く): 71003760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 79, 80, 88, 110, 120, 132, 139, 158, 165, 176, 220, 237, 240, 264, 278, 316, 330, 395, 417, 440, 474, 528, 556, 632, 660, 695, 790, 834, 869, 880, 948, 1112, 1185, 1264, 1320, 1390, 1529, 1580, 1668, 1738, 1896, 2085, 2224, 2370, 2607, 2640, 2780, 3058, 3160, 3336, 3476, 3792, 4170, 4345, 4587, 4740, 5214, 5560, 6116, 6320, 6672, 6952, 7645, 8340, 8690, 9174, 9480, 10428, 10981, 11120, 12232, 13035, 13904, 15290, 16680, 17380, 18348, 18960, 20856, 21962, 22935, 24464, 26070, 30580, 32943, 33360, 34760, 36696, 41712, 43924, 45870, 52140, 54905, 61160, 65886, 69520, 73392, 87848, 91740, 104280, 109810, 120791, 122320, 131772, 164715, 175696, 183480, 208560, 219620, 241582, 263544, 329430, 362373, 366960, 439240, 483164, 527088, 603955, 658860, 724746, 878480, 966328, 1207910, 1317720, 1449492, 1811865, 1932656, 2415820, 2635440, 2898984, 3623730, 4831640, 5797968, 7247460, 9663280, 14494920, 28989840]

約数ペア:

[(1, 28989840), (2, 14494920), (3, 9663280), (4, 7247460), (5, 5797968), (6, 4831640), (8, 3623730), (10, 2898984), (11, 2635440), (12, 2415820), (15, 1932656), (16, 1811865), (20, 1449492), (22, 1317720), (24, 1207910), (30, 966328), (33, 878480), (40, 724746), (44, 658860), (48, 603955), (55, 527088), (60, 483164), (66, 439240), (79, 366960), (80, 362373), (88, 329430), (110, 263544), (120, 241582), (132, 219620), (139, 208560), (158, 183480), (165, 175696), (176, 164715), (220, 131772), (237, 122320), (240, 120791), (264, 109810), (278, 104280), (316, 91740), (330, 87848), (395, 73392), (417, 69520), (440, 65886), (474, 61160), (528, 54905), (556, 52140), (632, 45870), (660, 43924), (695, 41712), (790, 36696), (834, 34760), (869, 33360), (880, 32943), (948, 30580), (1112, 26070), (1185, 24464), (1264, 22935), (1320, 21962), (1390, 20856), (1529, 18960), (1580, 18348), (1668, 17380), (1738, 16680), (1896, 15290), (2085, 13904), (2224, 13035), (2370, 12232), (2607, 11120), (2640, 10981), (2780, 10428), (3058, 9480), (3160, 9174), (3336, 8690), (3476, 8340), (3792, 7645), (4170, 6952), (4345, 6672), (4587, 6320), (4740, 6116), (5214, 5560)]