20741490

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 69818112

約数和(自身を除く): 49076622

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 41, 42, 45, 55, 63, 66, 70, 73, 77, 82, 90, 99, 105, 110, 123, 126, 146, 154, 165, 198, 205, 210, 219, 231, 246, 287, 315, 330, 365, 369, 385, 410, 438, 451, 462, 495, 511, 574, 615, 630, 657, 693, 730, 738, 770, 803, 861, 902, 990, 1022, 1095, 1155, 1230, 1314, 1353, 1386, 1435, 1533, 1606, 1722, 1845, 2190, 2255, 2310, 2409, 2555, 2583, 2706, 2870, 2993, 3066, 3157, 3285, 3465, 3690, 4015, 4059, 4305, 4510, 4599, 4818, 5110, 5166, 5621, 5986, 6314, 6570, 6765, 6930, 7227, 7665, 8030, 8118, 8610, 8979, 9198, 9471, 11242, 12045, 12915, 13530, 14454, 14965, 15330, 15785, 16863, 17958, 18942, 20295, 20951, 22995, 24090, 25830, 26937, 28105, 28413, 29930, 31570, 32923, 33726, 36135, 40590, 41902, 44895, 45990, 47355, 50589, 53874, 56210, 56826, 62853, 65846, 72270, 84315, 89790, 94710, 98769, 101178, 104755, 125706, 134685, 142065, 164615, 168630, 188559, 197538, 209510, 230461, 252945, 269370, 284130, 296307, 314265, 329230, 377118, 460922, 493845, 505890, 592614, 628530, 691383, 942795, 987690, 1152305, 1382766, 1481535, 1885590, 2074149, 2304610, 2963070, 3456915, 4148298, 6913830, 10370745, 20741490]

約数ペア:

[(1, 20741490), (2, 10370745), (3, 6913830), (5, 4148298), (6, 3456915), (7, 2963070), (9, 2304610), (10, 2074149), (11, 1885590), (14, 1481535), (15, 1382766), (18, 1152305), (21, 987690), (22, 942795), (30, 691383), (33, 628530), (35, 592614), (41, 505890), (42, 493845), (45, 460922), (55, 377118), (63, 329230), (66, 314265), (70, 296307), (73, 284130), (77, 269370), (82, 252945), (90, 230461), (99, 209510), (105, 197538), (110, 188559), (123, 168630), (126, 164615), (146, 142065), (154, 134685), (165, 125706), (198, 104755), (205, 101178), (210, 98769), (219, 94710), (231, 89790), (246, 84315), (287, 72270), (315, 65846), (330, 62853), (365, 56826), (369, 56210), (385, 53874), (410, 50589), (438, 47355), (451, 45990), (462, 44895), (495, 41902), (511, 40590), (574, 36135), (615, 33726), (630, 32923), (657, 31570), (693, 29930), (730, 28413), (738, 28105), (770, 26937), (803, 25830), (861, 24090), (902, 22995), (990, 20951), (1022, 20295), (1095, 18942), (1155, 17958), (1230, 16863), (1314, 15785), (1353, 15330), (1386, 14965), (1435, 14454), (1533, 13530), (1606, 12915), (1722, 12045), (1845, 11242), (2190, 9471), (2255, 9198), (2310, 8979), (2409, 8610), (2555, 8118), (2583, 8030), (2706, 7665), (2870, 7227), (2993, 6930), (3066, 6765), (3157, 6570), (3285, 6314), (3465, 5986), (3690, 5621), (4015, 5166), (4059, 5110), (4305, 4818), (4510, 4599)]