19792520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44983}}^1$

素因数の和:45005

約数の個数: 32

約数和(自身を含む): 48582720

約数和(自身を除く): 28790200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44983, 89966, 179932, 224915, 359864, 449830, 494813, 899660, 989626, 1799320, 1979252, 2474065, 3958504, 4948130, 9896260, 19792520]

約数ペア:

[(1, 19792520), (2, 9896260), (4, 4948130), (5, 3958504), (8, 2474065), (10, 1979252), (11, 1799320), (20, 989626), (22, 899660), (40, 494813), (44, 449830), (55, 359864), (88, 224915), (110, 179932), (220, 89966), (440, 44983)]