71815380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1879}}^1$

素因数の和:1918

約数の個数: 144

約数和(自身を含む): 252040320

約数和(自身を除く): 180224940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1879, 1911, 2548, 2730, 2940, 3185, 3758, 3822, 5460, 5637, 6370, 7516, 7644, 9395, 9555, 11274, 12740, 13153, 18790, 19110, 22548, 24427, 26306, 28185, 37580, 38220, 39459, 48854, 52612, 56370, 65765, 73281, 78918, 92071, 97708, 112740, 122135, 131530, 146562, 157836, 170989, 184142, 197295, 244270, 263060, 276213, 293124, 341978, 366405, 368284, 394590, 460355, 488540, 512967, 552426, 683956, 732810, 789180, 854945, 920710, 1025934, 1104852, 1196923, 1381065, 1465620, 1709890, 1841420, 2051868, 2393846, 2564835, 2762130, 3419780, 3590769, 4787692, 5129670, 5524260, 5984615, 7181538, 10259340, 11969230, 14363076, 17953845, 23938460, 35907690, 71815380]

約数ペア:

[(1, 71815380), (2, 35907690), (3, 23938460), (4, 17953845), (5, 14363076), (6, 11969230), (7, 10259340), (10, 7181538), (12, 5984615), (13, 5524260), (14, 5129670), (15, 4787692), (20, 3590769), (21, 3419780), (26, 2762130), (28, 2564835), (30, 2393846), (35, 2051868), (39, 1841420), (42, 1709890), (49, 1465620), (52, 1381065), (60, 1196923), (65, 1104852), (70, 1025934), (78, 920710), (84, 854945), (91, 789180), (98, 732810), (105, 683956), (130, 552426), (140, 512967), (147, 488540), (156, 460355), (182, 394590), (195, 368284), (196, 366405), (210, 341978), (245, 293124), (260, 276213), (273, 263060), (294, 244270), (364, 197295), (390, 184142), (420, 170989), (455, 157836), (490, 146562), (546, 131530), (588, 122135), (637, 112740), (735, 97708), (780, 92071), (910, 78918), (980, 73281), (1092, 65765), (1274, 56370), (1365, 52612), (1470, 48854), (1820, 39459), (1879, 38220), (1911, 37580), (2548, 28185), (2730, 26306), (2940, 24427), (3185, 22548), (3758, 19110), (3822, 18790), (5460, 13153), (5637, 12740), (6370, 11274), (7516, 9555), (7644, 9395)]