20057535

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 37267776

約数和(自身を除く): 17210241

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 157, 167, 255, 471, 501, 765, 785, 835, 1413, 1503, 2355, 2505, 2669, 2839, 7065, 7515, 8007, 8517, 13345, 14195, 24021, 25551, 26219, 40035, 42585, 78657, 120105, 127755, 131095, 235971, 393285, 445723, 1179855, 1337169, 2228615, 4011507, 6685845, 20057535]

約数ペア:

[(1, 20057535), (3, 6685845), (5, 4011507), (9, 2228615), (15, 1337169), (17, 1179855), (45, 445723), (51, 393285), (85, 235971), (153, 131095), (157, 127755), (167, 120105), (255, 78657), (471, 42585), (501, 40035), (765, 26219), (785, 25551), (835, 24021), (1413, 14195), (1503, 13345), (2355, 8517), (2505, 8007), (2669, 7515), (2839, 7065)]