20147760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27983}}^1$

素因数の和:28002

約数の個数: 60

約数和(自身を含む): 67665312

約数和(自身を除く): 47517552

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27983, 55966, 83949, 111932, 139915, 167898, 223864, 251847, 279830, 335796, 419745, 447728, 503694, 559660, 671592, 839490, 1007388, 1119320, 1259235, 1343184, 1678980, 2014776, 2238640, 2518470, 3357960, 4029552, 5036940, 6715920, 10073880, 20147760]

約数ペア:

[(1, 20147760), (2, 10073880), (3, 6715920), (4, 5036940), (5, 4029552), (6, 3357960), (8, 2518470), (9, 2238640), (10, 2014776), (12, 1678980), (15, 1343184), (16, 1259235), (18, 1119320), (20, 1007388), (24, 839490), (30, 671592), (36, 559660), (40, 503694), (45, 447728), (48, 419745), (60, 335796), (72, 279830), (80, 251847), (90, 223864), (120, 167898), (144, 139915), (180, 111932), (240, 83949), (360, 55966), (720, 27983)]