20109870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 160

約数和(自身を含む): 61576416

約数和(自身を除く): 41466546

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 37, 45, 54, 55, 61, 66, 74, 81, 90, 99, 110, 111, 122, 135, 162, 165, 183, 185, 198, 222, 270, 297, 305, 330, 333, 366, 370, 405, 407, 495, 549, 555, 594, 610, 666, 671, 810, 814, 891, 915, 990, 999, 1098, 1110, 1221, 1342, 1485, 1647, 1665, 1782, 1830, 1998, 2013, 2035, 2257, 2442, 2745, 2970, 2997, 3294, 3330, 3355, 3663, 4026, 4070, 4455, 4514, 4941, 4995, 5490, 5994, 6039, 6105, 6710, 6771, 7326, 8235, 8910, 9882, 9990, 10065, 10989, 11285, 12078, 12210, 13542, 14985, 16470, 18117, 18315, 20130, 20313, 21978, 22570, 24705, 24827, 29970, 30195, 32967, 33855, 36234, 36630, 40626, 49410, 49654, 54351, 54945, 60390, 60939, 65934, 67710, 74481, 90585, 101565, 108702, 109890, 121878, 124135, 148962, 164835, 181170, 182817, 203130, 223443, 248270, 271755, 304695, 329670, 365634, 372405, 446886, 543510, 609390, 670329, 744810, 914085, 1117215, 1340658, 1828170, 2010987, 2234430, 3351645, 4021974, 6703290, 10054935, 20109870]

約数ペア:

[(1, 20109870), (2, 10054935), (3, 6703290), (5, 4021974), (6, 3351645), (9, 2234430), (10, 2010987), (11, 1828170), (15, 1340658), (18, 1117215), (22, 914085), (27, 744810), (30, 670329), (33, 609390), (37, 543510), (45, 446886), (54, 372405), (55, 365634), (61, 329670), (66, 304695), (74, 271755), (81, 248270), (90, 223443), (99, 203130), (110, 182817), (111, 181170), (122, 164835), (135, 148962), (162, 124135), (165, 121878), (183, 109890), (185, 108702), (198, 101565), (222, 90585), (270, 74481), (297, 67710), (305, 65934), (330, 60939), (333, 60390), (366, 54945), (370, 54351), (405, 49654), (407, 49410), (495, 40626), (549, 36630), (555, 36234), (594, 33855), (610, 32967), (666, 30195), (671, 29970), (810, 24827), (814, 24705), (891, 22570), (915, 21978), (990, 20313), (999, 20130), (1098, 18315), (1110, 18117), (1221, 16470), (1342, 14985), (1485, 13542), (1647, 12210), (1665, 12078), (1782, 11285), (1830, 10989), (1998, 10065), (2013, 9990), (2035, 9882), (2257, 8910), (2442, 8235), (2745, 7326), (2970, 6771), (2997, 6710), (3294, 6105), (3330, 6039), (3355, 5994), (3663, 5490), (4026, 4995), (4070, 4941), (4455, 4514)]