81315240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{677627}}^1$

素因数の和:677641

約数の個数: 32

約数和(自身を含む): 243946080

約数和(自身を除く): 162630840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 677627, 1355254, 2032881, 2710508, 3388135, 4065762, 5421016, 6776270, 8131524, 10164405, 13552540, 16263048, 20328810, 27105080, 40657620, 81315240]

約数ペア:

[(1, 81315240), (2, 40657620), (3, 27105080), (4, 20328810), (5, 16263048), (6, 13552540), (8, 10164405), (10, 8131524), (12, 6776270), (15, 5421016), (20, 4065762), (24, 3388135), (30, 2710508), (40, 2032881), (60, 1355254), (120, 677627)]