71379280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:297

約数の個数: 120

約数和(自身を含む): 195924960

約数和(自身を除く): 124545680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 131, 139, 140, 196, 245, 262, 278, 280, 392, 490, 524, 556, 560, 655, 695, 784, 917, 973, 980, 1048, 1112, 1310, 1390, 1834, 1946, 1960, 2096, 2224, 2620, 2780, 3668, 3892, 3920, 4585, 4865, 5240, 5560, 6419, 6811, 7336, 7784, 9170, 9730, 10480, 11120, 12838, 13622, 14672, 15568, 18209, 18340, 19460, 25676, 27244, 32095, 34055, 36418, 36680, 38920, 51352, 54488, 64190, 68110, 72836, 73360, 77840, 91045, 102704, 108976, 127463, 128380, 136220, 145672, 182090, 254926, 256760, 272440, 291344, 364180, 509852, 513520, 544880, 637315, 728360, 892241, 1019704, 1274630, 1456720, 1784482, 2039408, 2549260, 3568964, 4461205, 5098520, 7137928, 8922410, 10197040, 14275856, 17844820, 35689640, 71379280]

約数ペア:

[(1, 71379280), (2, 35689640), (4, 17844820), (5, 14275856), (7, 10197040), (8, 8922410), (10, 7137928), (14, 5098520), (16, 4461205), (20, 3568964), (28, 2549260), (35, 2039408), (40, 1784482), (49, 1456720), (56, 1274630), (70, 1019704), (80, 892241), (98, 728360), (112, 637315), (131, 544880), (139, 513520), (140, 509852), (196, 364180), (245, 291344), (262, 272440), (278, 256760), (280, 254926), (392, 182090), (490, 145672), (524, 136220), (556, 128380), (560, 127463), (655, 108976), (695, 102704), (784, 91045), (917, 77840), (973, 73360), (980, 72836), (1048, 68110), (1112, 64190), (1310, 54488), (1390, 51352), (1834, 38920), (1946, 36680), (1960, 36418), (2096, 34055), (2224, 32095), (2620, 27244), (2780, 25676), (3668, 19460), (3892, 18340), (3920, 18209), (4585, 15568), (4865, 14672), (5240, 13622), (5560, 12838), (6419, 11120), (6811, 10480), (7336, 9730), (7784, 9170)]