1259969420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{47}}^2\times {\mathrm{79}}^1$

素因数の和:220

約数の個数: 108

約数和(自身を含む): 2889321120

約数和(自身を除く): 1629351700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 79, 94, 95, 158, 188, 190, 235, 316, 361, 380, 395, 470, 722, 790, 893, 940, 1444, 1501, 1580, 1786, 1805, 2209, 3002, 3572, 3610, 3713, 4418, 4465, 6004, 7220, 7426, 7505, 8836, 8930, 11045, 14852, 15010, 16967, 17860, 18565, 22090, 28519, 30020, 33934, 37130, 41971, 44180, 57038, 67868, 70547, 74260, 83942, 84835, 114076, 141094, 142595, 167884, 169670, 174511, 209855, 282188, 285190, 339340, 349022, 352735, 419710, 570380, 698044, 705470, 797449, 839420, 872555, 1340393, 1410940, 1594898, 1745110, 2680786, 3189796, 3315709, 3490220, 3987245, 5361572, 6631418, 6701965, 7974490, 13262836, 13403930, 15948980, 16578545, 26807860, 33157090, 62998471, 66314180, 125996942, 251993884, 314992355, 629984710, 1259969420]

約数ペア:

[(1, 1259969420), (2, 629984710), (4, 314992355), (5, 251993884), (10, 125996942), (19, 66314180), (20, 62998471), (38, 33157090), (47, 26807860), (76, 16578545), (79, 15948980), (94, 13403930), (95, 13262836), (158, 7974490), (188, 6701965), (190, 6631418), (235, 5361572), (316, 3987245), (361, 3490220), (380, 3315709), (395, 3189796), (470, 2680786), (722, 1745110), (790, 1594898), (893, 1410940), (940, 1340393), (1444, 872555), (1501, 839420), (1580, 797449), (1786, 705470), (1805, 698044), (2209, 570380), (3002, 419710), (3572, 352735), (3610, 349022), (3713, 339340), (4418, 285190), (4465, 282188), (6004, 209855), (7220, 174511), (7426, 169670), (7505, 167884), (8836, 142595), (8930, 141094), (11045, 114076), (14852, 84835), (15010, 83942), (16967, 74260), (17860, 70547), (18565, 67868), (22090, 57038), (28519, 44180), (30020, 41971), (33934, 37130)]