15657320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 40608000

約数和(自身を除く): 24950680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 280, 281, 398, 562, 796, 995, 1124, 1393, 1405, 1592, 1967, 1990, 2248, 2786, 2810, 3934, 3980, 5572, 5620, 6965, 7868, 7960, 9835, 11144, 11240, 13930, 15736, 19670, 27860, 39340, 55720, 55919, 78680, 111838, 223676, 279595, 391433, 447352, 559190, 782866, 1118380, 1565732, 1957165, 2236760, 3131464, 3914330, 7828660, 15657320]

約数ペア:

[(1, 15657320), (2, 7828660), (4, 3914330), (5, 3131464), (7, 2236760), (8, 1957165), (10, 1565732), (14, 1118380), (20, 782866), (28, 559190), (35, 447352), (40, 391433), (56, 279595), (70, 223676), (140, 111838), (199, 78680), (280, 55919), (281, 55720), (398, 39340), (562, 27860), (796, 19670), (995, 15736), (1124, 13930), (1393, 11240), (1405, 11144), (1592, 9835), (1967, 7960), (1990, 7868), (2248, 6965), (2786, 5620), (2810, 5572), (3934, 3980)]