261301992

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:511

約数の個数: 128

約数和(自身を含む): 775127040

約数和(自身を除く): 513825048

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 127, 148, 168, 222, 254, 259, 296, 331, 381, 444, 508, 518, 662, 762, 777, 888, 889, 993, 1016, 1036, 1324, 1524, 1554, 1778, 1986, 2072, 2317, 2648, 2667, 3048, 3108, 3556, 3972, 4634, 4699, 5334, 6216, 6951, 7112, 7944, 9268, 9398, 10668, 12247, 13902, 14097, 18536, 18796, 21336, 24494, 27804, 28194, 32893, 36741, 37592, 42037, 48988, 55608, 56388, 65786, 73482, 84074, 85729, 97976, 98679, 112776, 126111, 131572, 146964, 168148, 171458, 197358, 252222, 257187, 263144, 293928, 294259, 336296, 342916, 394716, 504444, 514374, 588518, 685832, 789432, 882777, 1008888, 1028748, 1177036, 1555369, 1765554, 2057496, 2354072, 3110738, 3531108, 4666107, 6221476, 7062216, 9332214, 10887583, 12442952, 18664428, 21775166, 32662749, 37328856, 43550332, 65325498, 87100664, 130650996, 261301992]

約数ペア:

[(1, 261301992), (2, 130650996), (3, 87100664), (4, 65325498), (6, 43550332), (7, 37328856), (8, 32662749), (12, 21775166), (14, 18664428), (21, 12442952), (24, 10887583), (28, 9332214), (37, 7062216), (42, 6221476), (56, 4666107), (74, 3531108), (84, 3110738), (111, 2354072), (127, 2057496), (148, 1765554), (168, 1555369), (222, 1177036), (254, 1028748), (259, 1008888), (296, 882777), (331, 789432), (381, 685832), (444, 588518), (508, 514374), (518, 504444), (662, 394716), (762, 342916), (777, 336296), (888, 294259), (889, 293928), (993, 263144), (1016, 257187), (1036, 252222), (1324, 197358), (1524, 171458), (1554, 168148), (1778, 146964), (1986, 131572), (2072, 126111), (2317, 112776), (2648, 98679), (2667, 97976), (3048, 85729), (3108, 84074), (3556, 73482), (3972, 65786), (4634, 56388), (4699, 55608), (5334, 48988), (6216, 42037), (6951, 37592), (7112, 36741), (7944, 32893), (9268, 28194), (9398, 27804), (10668, 24494), (12247, 21336), (13902, 18796), (14097, 18536)]