207920020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 192

約数和(自身を含む): 579156480

約数和(自身を除く): 371236460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 41, 44, 55, 70, 74, 77, 82, 89, 110, 140, 148, 154, 164, 178, 185, 205, 220, 259, 287, 308, 356, 370, 385, 407, 410, 445, 451, 518, 574, 623, 740, 770, 814, 820, 890, 902, 979, 1036, 1148, 1246, 1295, 1435, 1517, 1540, 1628, 1780, 1804, 1958, 2035, 2255, 2492, 2590, 2849, 2870, 3034, 3115, 3157, 3293, 3649, 3916, 4070, 4510, 4895, 5180, 5698, 5740, 6068, 6230, 6314, 6586, 6853, 7298, 7585, 8140, 9020, 9790, 10619, 11396, 12460, 12628, 13172, 13706, 14245, 14596, 15170, 15785, 16465, 16687, 18245, 19580, 21238, 23051, 25543, 27412, 28490, 30340, 31570, 32930, 33374, 34265, 36223, 36490, 40139, 42476, 46102, 51086, 53095, 56980, 63140, 65860, 66748, 68530, 72446, 72980, 80278, 83435, 92204, 102172, 106190, 115255, 116809, 127715, 135013, 137060, 144892, 160556, 166870, 181115, 200695, 212380, 230510, 233618, 253561, 255430, 270026, 280973, 333740, 362230, 401390, 461020, 467236, 507122, 510860, 540052, 561946, 584045, 675065, 724460, 802780, 945091, 1014244, 1123892, 1168090, 1267805, 1350130, 1404865, 1485143, 1890182, 2336180, 2535610, 2700260, 2809730, 2970286, 3780364, 4725455, 5071220, 5619460, 5940572, 7425715, 9450910, 10396001, 14851430, 18901820, 20792002, 29702860, 41584004, 51980005, 103960010, 207920020]

約数ペア:

[(1, 207920020), (2, 103960010), (4, 51980005), (5, 41584004), (7, 29702860), (10, 20792002), (11, 18901820), (14, 14851430), (20, 10396001), (22, 9450910), (28, 7425715), (35, 5940572), (37, 5619460), (41, 5071220), (44, 4725455), (55, 3780364), (70, 2970286), (74, 2809730), (77, 2700260), (82, 2535610), (89, 2336180), (110, 1890182), (140, 1485143), (148, 1404865), (154, 1350130), (164, 1267805), (178, 1168090), (185, 1123892), (205, 1014244), (220, 945091), (259, 802780), (287, 724460), (308, 675065), (356, 584045), (370, 561946), (385, 540052), (407, 510860), (410, 507122), (445, 467236), (451, 461020), (518, 401390), (574, 362230), (623, 333740), (740, 280973), (770, 270026), (814, 255430), (820, 253561), (890, 233618), (902, 230510), (979, 212380), (1036, 200695), (1148, 181115), (1246, 166870), (1295, 160556), (1435, 144892), (1517, 137060), (1540, 135013), (1628, 127715), (1780, 116809), (1804, 115255), (1958, 106190), (2035, 102172), (2255, 92204), (2492, 83435), (2590, 80278), (2849, 72980), (2870, 72446), (3034, 68530), (3115, 66748), (3157, 65860), (3293, 63140), (3649, 56980), (3916, 53095), (4070, 51086), (4510, 46102), (4895, 42476), (5180, 40139), (5698, 36490), (5740, 36223), (6068, 34265), (6230, 33374), (6314, 32930), (6586, 31570), (6853, 30340), (7298, 28490), (7585, 27412), (8140, 25543), (9020, 23051), (9790, 21238), (10619, 19580), (11396, 18245), (12460, 16687), (12628, 16465), (13172, 15785), (13706, 15170), (14245, 14596)]