171389440

素因数分解:

$2^9\times 5^1\times {\mathrm{66949}}^1$

素因数の和:66972

約数の個数: 40

約数和(自身を含む): 410939100

約数和(自身を除く): 239549660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 66949, 133898, 267796, 334745, 535592, 669490, 1071184, 1338980, 2142368, 2677960, 4284736, 5355920, 8569472, 10711840, 17138944, 21423680, 34277888, 42847360, 85694720, 171389440]

約数ペア:

[(1, 171389440), (2, 85694720), (4, 42847360), (5, 34277888), (8, 21423680), (10, 17138944), (16, 10711840), (20, 8569472), (32, 5355920), (40, 4284736), (64, 2677960), (80, 2142368), (128, 1338980), (160, 1071184), (256, 669490), (320, 535592), (512, 334745), (640, 267796), (1280, 133898), (2560, 66949)]