1279285420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{8863}}^1$

素因数の和:9910

約数の個数: 48

約数和(自身を含む): 3073609728

約数和(自身を除く): 1794324308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1031, 2062, 4124, 5155, 7217, 8863, 10310, 14434, 17726, 20620, 28868, 35452, 36085, 44315, 62041, 72170, 88630, 124082, 144340, 177260, 248164, 310205, 620410, 1240820, 9137753, 18275506, 36551012, 45688765, 63964271, 91377530, 127928542, 182755060, 255857084, 319821355, 639642710, 1279285420]

約数ペア:

[(1, 1279285420), (2, 639642710), (4, 319821355), (5, 255857084), (7, 182755060), (10, 127928542), (14, 91377530), (20, 63964271), (28, 45688765), (35, 36551012), (70, 18275506), (140, 9137753), (1031, 1240820), (2062, 620410), (4124, 310205), (5155, 248164), (7217, 177260), (8863, 144340), (10310, 124082), (14434, 88630), (17726, 72170), (20620, 62041), (28868, 44315), (35452, 36085)]