1427887520

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{509}}^1$

素因数の和:810

約数の個数: 96

約数和(自身を含む): 3435339600

約数和(自身を除く): 2007452080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 197, 356, 394, 445, 509, 712, 788, 890, 985, 1018, 1424, 1576, 1780, 1970, 2036, 2545, 2848, 3152, 3560, 3940, 4072, 5090, 6304, 7120, 7880, 8144, 10180, 14240, 15760, 16288, 17533, 20360, 31520, 35066, 40720, 45301, 70132, 81440, 87665, 90602, 100273, 140264, 175330, 181204, 200546, 226505, 280528, 350660, 362408, 401092, 453010, 501365, 561056, 701320, 724816, 802184, 906020, 1002730, 1402640, 1449632, 1604368, 1812040, 2005460, 2805280, 3208736, 3624080, 4010920, 7248160, 8021840, 8924297, 16043680, 17848594, 35697188, 44621485, 71394376, 89242970, 142788752, 178485940, 285577504, 356971880, 713943760, 1427887520]

約数ペア:

[(1, 1427887520), (2, 713943760), (4, 356971880), (5, 285577504), (8, 178485940), (10, 142788752), (16, 89242970), (20, 71394376), (32, 44621485), (40, 35697188), (80, 17848594), (89, 16043680), (160, 8924297), (178, 8021840), (197, 7248160), (356, 4010920), (394, 3624080), (445, 3208736), (509, 2805280), (712, 2005460), (788, 1812040), (890, 1604368), (985, 1449632), (1018, 1402640), (1424, 1002730), (1576, 906020), (1780, 802184), (1970, 724816), (2036, 701320), (2545, 561056), (2848, 501365), (3152, 453010), (3560, 401092), (3940, 362408), (4072, 350660), (5090, 280528), (6304, 226505), (7120, 200546), (7880, 181204), (8144, 175330), (10180, 140264), (14240, 100273), (15760, 90602), (16288, 87665), (17533, 81440), (20360, 70132), (31520, 45301), (35066, 40720)]