155321680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{66949}}^1$

素因数の和:66991

約数の個数: 40

約数和(自身を含む): 373581000

約数和(自身を除く): 218259320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 66949, 133898, 267796, 334745, 535592, 669490, 1071184, 1338980, 1941521, 2677960, 3883042, 5355920, 7766084, 9707605, 15532168, 19415210, 31064336, 38830420, 77660840, 155321680]

約数ペア:

[(1, 155321680), (2, 77660840), (4, 38830420), (5, 31064336), (8, 19415210), (10, 15532168), (16, 9707605), (20, 7766084), (29, 5355920), (40, 3883042), (58, 2677960), (80, 1941521), (116, 1338980), (145, 1071184), (232, 669490), (290, 535592), (464, 334745), (580, 267796), (1160, 133898), (2320, 66949)]