80109890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 188006400

約数和(自身を除く): 107896510

約数列:

[1, 2, 5, 7, 10, 14, 19, 29, 31, 35, 38, 58, 62, 67, 70, 95, 133, 134, 145, 155, 190, 203, 217, 266, 290, 310, 335, 406, 434, 469, 551, 589, 665, 670, 899, 938, 1015, 1085, 1102, 1178, 1273, 1330, 1798, 1943, 2030, 2077, 2170, 2345, 2546, 2755, 2945, 3857, 3886, 4123, 4154, 4495, 4690, 5510, 5890, 6293, 6365, 7714, 8246, 8911, 8990, 9715, 10385, 12586, 12730, 13601, 14539, 17081, 17822, 19285, 19430, 20615, 20770, 27202, 29078, 31465, 34162, 36917, 38570, 39463, 41230, 44555, 60233, 62930, 68005, 72695, 73834, 78926, 85405, 89110, 119567, 120466, 136010, 145390, 170810, 184585, 197315, 239134, 258419, 276241, 301165, 369170, 394630, 421631, 516838, 552482, 597835, 602330, 843262, 1144427, 1195670, 1292095, 1381205, 2108155, 2288854, 2584190, 2762410, 4216310, 5722135, 8010989, 11444270, 16021978, 40054945, 80109890]

約数ペア:

[(1, 80109890), (2, 40054945), (5, 16021978), (7, 11444270), (10, 8010989), (14, 5722135), (19, 4216310), (29, 2762410), (31, 2584190), (35, 2288854), (38, 2108155), (58, 1381205), (62, 1292095), (67, 1195670), (70, 1144427), (95, 843262), (133, 602330), (134, 597835), (145, 552482), (155, 516838), (190, 421631), (203, 394630), (217, 369170), (266, 301165), (290, 276241), (310, 258419), (335, 239134), (406, 197315), (434, 184585), (469, 170810), (551, 145390), (589, 136010), (665, 120466), (670, 119567), (899, 89110), (938, 85405), (1015, 78926), (1085, 73834), (1102, 72695), (1178, 68005), (1273, 62930), (1330, 60233), (1798, 44555), (1943, 41230), (2030, 39463), (2077, 38570), (2170, 36917), (2345, 34162), (2546, 31465), (2755, 29078), (2945, 27202), (3857, 20770), (3886, 20615), (4123, 19430), (4154, 19285), (4495, 17822), (4690, 17081), (5510, 14539), (5890, 13601), (6293, 12730), (6365, 12586), (7714, 10385), (8246, 9715), (8911, 8990)]