20800170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{967}}^1$

素因数の和:1219

約数の個数: 48

約数和(自身を含む): 54362880

約数和(自身を除く): 33562710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 239, 478, 717, 967, 1195, 1434, 1934, 2151, 2390, 2901, 3585, 4302, 4835, 5802, 7170, 8703, 9670, 10755, 14505, 17406, 21510, 29010, 43515, 87030, 231113, 462226, 693339, 1155565, 1386678, 2080017, 2311130, 3466695, 4160034, 6933390, 10400085, 20800170]

約数ペア:

[(1, 20800170), (2, 10400085), (3, 6933390), (5, 4160034), (6, 3466695), (9, 2311130), (10, 2080017), (15, 1386678), (18, 1155565), (30, 693339), (45, 462226), (90, 231113), (239, 87030), (478, 43515), (717, 29010), (967, 21510), (1195, 17406), (1434, 14505), (1934, 10755), (2151, 9670), (2390, 8703), (2901, 7170), (3585, 5802), (4302, 4835)]