18380320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{16411}}^1$

素因数の和:16433

約数の個数: 48

約数和(自身を含む): 49629888

約数和(自身を除く): 31249568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 16411, 32822, 65644, 82055, 114877, 131288, 164110, 229754, 262576, 328220, 459508, 525152, 574385, 656440, 919016, 1148770, 1312880, 1838032, 2297540, 2625760, 3676064, 4595080, 9190160, 18380320]

約数ペア:

[(1, 18380320), (2, 9190160), (4, 4595080), (5, 3676064), (7, 2625760), (8, 2297540), (10, 1838032), (14, 1312880), (16, 1148770), (20, 919016), (28, 656440), (32, 574385), (35, 525152), (40, 459508), (56, 328220), (70, 262576), (80, 229754), (112, 164110), (140, 131288), (160, 114877), (224, 82055), (280, 65644), (560, 32822), (1120, 16411)]