247791880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:503

約数の個数: 128

約数和(自身を含む): 672883200

約数和(自身を除く): 425091320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 109, 115, 140, 161, 184, 218, 230, 280, 322, 353, 436, 460, 545, 644, 706, 763, 805, 872, 920, 1090, 1288, 1412, 1526, 1610, 1765, 2180, 2471, 2507, 2824, 3052, 3220, 3530, 3815, 4360, 4942, 5014, 6104, 6440, 7060, 7630, 8119, 9884, 10028, 12355, 12535, 14120, 15260, 16238, 17549, 19768, 20056, 24710, 25070, 30520, 32476, 35098, 38477, 40595, 49420, 50140, 56833, 64952, 70196, 76954, 81190, 87745, 98840, 100280, 113666, 140392, 153908, 162380, 175490, 192385, 227332, 269339, 284165, 307816, 324760, 350980, 384770, 454664, 538678, 568330, 701960, 769540, 884971, 1077356, 1136660, 1346695, 1539080, 1769942, 2154712, 2273320, 2693390, 3539884, 4424855, 5386780, 6194797, 7079768, 8849710, 10773560, 12389594, 17699420, 24779188, 30973985, 35398840, 49558376, 61947970, 123895940, 247791880]

約数ペア:

[(1, 247791880), (2, 123895940), (4, 61947970), (5, 49558376), (7, 35398840), (8, 30973985), (10, 24779188), (14, 17699420), (20, 12389594), (23, 10773560), (28, 8849710), (35, 7079768), (40, 6194797), (46, 5386780), (56, 4424855), (70, 3539884), (92, 2693390), (109, 2273320), (115, 2154712), (140, 1769942), (161, 1539080), (184, 1346695), (218, 1136660), (230, 1077356), (280, 884971), (322, 769540), (353, 701960), (436, 568330), (460, 538678), (545, 454664), (644, 384770), (706, 350980), (763, 324760), (805, 307816), (872, 284165), (920, 269339), (1090, 227332), (1288, 192385), (1412, 175490), (1526, 162380), (1610, 153908), (1765, 140392), (2180, 113666), (2471, 100280), (2507, 98840), (2824, 87745), (3052, 81190), (3220, 76954), (3530, 70196), (3815, 64952), (4360, 56833), (4942, 50140), (5014, 49420), (6104, 40595), (6440, 38477), (7060, 35098), (7630, 32476), (8119, 30520), (9884, 25070), (10028, 24710), (12355, 20056), (12535, 19768), (14120, 17549), (15260, 16238)]