128156940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{711983}}^1$

素因数の和:711998

約数の個数: 36

約数和(自身を含む): 388743264

約数和(自身を除く): 260586324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 711983, 1423966, 2135949, 2847932, 3559915, 4271898, 6407847, 7119830, 8543796, 10679745, 12815694, 14239660, 21359490, 25631388, 32039235, 42718980, 64078470, 128156940]

約数ペア:

[(1, 128156940), (2, 64078470), (3, 42718980), (4, 32039235), (5, 25631388), (6, 21359490), (9, 14239660), (10, 12815694), (12, 10679745), (15, 8543796), (18, 7119830), (20, 6407847), (30, 4271898), (36, 3559915), (45, 2847932), (60, 2135949), (90, 1423966), (180, 711983)]