248539140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:418

約数の個数: 144

約数和(自身を含む): 780107328

約数和(自身を除く): 531568188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 163, 172, 180, 197, 215, 258, 326, 387, 394, 430, 489, 516, 591, 645, 652, 774, 788, 815, 860, 978, 985, 1182, 1290, 1467, 1548, 1630, 1773, 1935, 1956, 1970, 2364, 2445, 2580, 2934, 2955, 3260, 3546, 3870, 3940, 4890, 5868, 5910, 7009, 7092, 7335, 7740, 8471, 8865, 9780, 11820, 14018, 14670, 16942, 17730, 21027, 25413, 28036, 29340, 32111, 33884, 35045, 35460, 42054, 42355, 50826, 63081, 64222, 70090, 76239, 84108, 84710, 96333, 101652, 105135, 126162, 127065, 128444, 140180, 152478, 160555, 169420, 192666, 210270, 252324, 254130, 288999, 304956, 315405, 321110, 381195, 385332, 420540, 481665, 508260, 577998, 630810, 642220, 762390, 963330, 1155996, 1261620, 1380773, 1444995, 1524780, 1926660, 2761546, 2889990, 4142319, 5523092, 5779980, 6903865, 8284638, 12426957, 13807730, 16569276, 20711595, 24853914, 27615460, 41423190, 49707828, 62134785, 82846380, 124269570, 248539140]

約数ペア:

[(1, 248539140), (2, 124269570), (3, 82846380), (4, 62134785), (5, 49707828), (6, 41423190), (9, 27615460), (10, 24853914), (12, 20711595), (15, 16569276), (18, 13807730), (20, 12426957), (30, 8284638), (36, 6903865), (43, 5779980), (45, 5523092), (60, 4142319), (86, 2889990), (90, 2761546), (129, 1926660), (163, 1524780), (172, 1444995), (180, 1380773), (197, 1261620), (215, 1155996), (258, 963330), (326, 762390), (387, 642220), (394, 630810), (430, 577998), (489, 508260), (516, 481665), (591, 420540), (645, 385332), (652, 381195), (774, 321110), (788, 315405), (815, 304956), (860, 288999), (978, 254130), (985, 252324), (1182, 210270), (1290, 192666), (1467, 169420), (1548, 160555), (1630, 152478), (1773, 140180), (1935, 128444), (1956, 127065), (1970, 126162), (2364, 105135), (2445, 101652), (2580, 96333), (2934, 84710), (2955, 84108), (3260, 76239), (3546, 70090), (3870, 64222), (3940, 63081), (4890, 50826), (5868, 42355), (5910, 42054), (7009, 35460), (7092, 35045), (7335, 33884), (7740, 32111), (8471, 29340), (8865, 28036), (9780, 25413), (11820, 21027), (14018, 17730), (14670, 16942)]