19017680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21611}}^1$

素因数の和:21635

約数の個数: 40

約数和(自身を含む): 48237984

約数和(自身を除く): 29220304

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21611, 43222, 86444, 108055, 172888, 216110, 237721, 345776, 432220, 475442, 864440, 950884, 1188605, 1728880, 1901768, 2377210, 3803536, 4754420, 9508840, 19017680]

約数ペア:

[(1, 19017680), (2, 9508840), (4, 4754420), (5, 3803536), (8, 2377210), (10, 1901768), (11, 1728880), (16, 1188605), (20, 950884), (22, 864440), (40, 475442), (44, 432220), (55, 345776), (80, 237721), (88, 216110), (110, 172888), (176, 108055), (220, 86444), (440, 43222), (880, 21611)]