518749280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:677

約数の個数: 144

約数和(自身を含む): 1439617536

約数和(自身を除く): 920868256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 127, 140, 160, 196, 224, 245, 254, 280, 392, 490, 508, 521, 560, 635, 784, 889, 980, 1016, 1042, 1120, 1270, 1568, 1778, 1960, 2032, 2084, 2540, 2605, 3556, 3647, 3920, 4064, 4168, 4445, 5080, 5210, 6223, 7112, 7294, 7840, 8336, 8890, 10160, 10420, 12446, 14224, 14588, 16672, 17780, 18235, 20320, 20840, 24892, 25529, 28448, 29176, 31115, 35560, 36470, 41680, 49784, 51058, 58352, 62230, 66167, 71120, 72940, 83360, 99568, 102116, 116704, 124460, 127645, 132334, 142240, 145880, 199136, 204232, 248920, 255290, 264668, 291760, 330835, 408464, 463169, 497840, 510580, 529336, 583520, 661670, 816928, 926338, 995680, 1021160, 1058672, 1323340, 1852676, 2042320, 2117344, 2315845, 2646680, 3242183, 3705352, 4084640, 4631690, 5293360, 6484366, 7410704, 9263380, 10586720, 12968732, 14821408, 16210915, 18526760, 25937464, 32421830, 37053520, 51874928, 64843660, 74107040, 103749856, 129687320, 259374640, 518749280]

約数ペア:

[(1, 518749280), (2, 259374640), (4, 129687320), (5, 103749856), (7, 74107040), (8, 64843660), (10, 51874928), (14, 37053520), (16, 32421830), (20, 25937464), (28, 18526760), (32, 16210915), (35, 14821408), (40, 12968732), (49, 10586720), (56, 9263380), (70, 7410704), (80, 6484366), (98, 5293360), (112, 4631690), (127, 4084640), (140, 3705352), (160, 3242183), (196, 2646680), (224, 2315845), (245, 2117344), (254, 2042320), (280, 1852676), (392, 1323340), (490, 1058672), (508, 1021160), (521, 995680), (560, 926338), (635, 816928), (784, 661670), (889, 583520), (980, 529336), (1016, 510580), (1042, 497840), (1120, 463169), (1270, 408464), (1568, 330835), (1778, 291760), (1960, 264668), (2032, 255290), (2084, 248920), (2540, 204232), (2605, 199136), (3556, 145880), (3647, 142240), (3920, 132334), (4064, 127645), (4168, 124460), (4445, 116704), (5080, 102116), (5210, 99568), (6223, 83360), (7112, 72940), (7294, 71120), (7840, 66167), (8336, 62230), (8890, 58352), (10160, 51058), (10420, 49784), (12446, 41680), (14224, 36470), (14588, 35560), (16672, 31115), (17780, 29176), (18235, 28448), (20320, 25529), (20840, 24892)]