28638840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{238657}}^1$

素因数の和:238671

約数の個数: 32

約数和(自身を含む): 85916880

約数和(自身を除く): 57278040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 238657, 477314, 715971, 954628, 1193285, 1431942, 1909256, 2386570, 2863884, 3579855, 4773140, 5727768, 7159710, 9546280, 14319420, 28638840]

約数ペア:

[(1, 28638840), (2, 14319420), (3, 9546280), (4, 7159710), (5, 5727768), (6, 4773140), (8, 3579855), (10, 2863884), (12, 2386570), (15, 1909256), (20, 1431942), (24, 1193285), (30, 954628), (40, 715971), (60, 477314), (120, 238657)]