257135328

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1$

素因数の和:477

約数の個数: 144

約数和(自身を含む): 766112256

約数和(自身を除く): 508976928

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 83, 93, 96, 124, 144, 166, 186, 248, 249, 279, 288, 332, 347, 372, 496, 498, 558, 664, 694, 744, 747, 992, 996, 1041, 1116, 1328, 1388, 1488, 1494, 1992, 2082, 2232, 2573, 2656, 2776, 2976, 2988, 3123, 3984, 4164, 4464, 5146, 5552, 5976, 6246, 7719, 7968, 8328, 8928, 10292, 10757, 11104, 11952, 12492, 15438, 16656, 20584, 21514, 23157, 23904, 24984, 28801, 30876, 32271, 33312, 41168, 43028, 46314, 49968, 57602, 61752, 64542, 82336, 86056, 86403, 92628, 96813, 99936, 115204, 123504, 129084, 172112, 172806, 185256, 193626, 230408, 247008, 258168, 259209, 344224, 345612, 370512, 387252, 460816, 516336, 518418, 691224, 741024, 774504, 892831, 921632, 1032672, 1036836, 1382448, 1549008, 1785662, 2073672, 2678493, 2764896, 3098016, 3571324, 4147344, 5356986, 7142648, 8035479, 8294688, 10713972, 14285296, 16070958, 21427944, 28570592, 32141916, 42855888, 64283832, 85711776, 128567664, 257135328]

約数ペア:

[(1, 257135328), (2, 128567664), (3, 85711776), (4, 64283832), (6, 42855888), (8, 32141916), (9, 28570592), (12, 21427944), (16, 16070958), (18, 14285296), (24, 10713972), (31, 8294688), (32, 8035479), (36, 7142648), (48, 5356986), (62, 4147344), (72, 3571324), (83, 3098016), (93, 2764896), (96, 2678493), (124, 2073672), (144, 1785662), (166, 1549008), (186, 1382448), (248, 1036836), (249, 1032672), (279, 921632), (288, 892831), (332, 774504), (347, 741024), (372, 691224), (496, 518418), (498, 516336), (558, 460816), (664, 387252), (694, 370512), (744, 345612), (747, 344224), (992, 259209), (996, 258168), (1041, 247008), (1116, 230408), (1328, 193626), (1388, 185256), (1488, 172806), (1494, 172112), (1992, 129084), (2082, 123504), (2232, 115204), (2573, 99936), (2656, 96813), (2776, 92628), (2976, 86403), (2988, 86056), (3123, 82336), (3984, 64542), (4164, 61752), (4464, 57602), (5146, 49968), (5552, 46314), (5976, 43028), (6246, 41168), (7719, 33312), (7968, 32271), (8328, 30876), (8928, 28801), (10292, 24984), (10757, 23904), (11104, 23157), (11952, 21514), (12492, 20584), (15438, 16656)]