20731270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4057}}^1$

素因数の和:4144

約数の個数: 32

約数和(自身を含む): 43242048

約数和(自身を除く): 22510778

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 4057, 5110, 8114, 20285, 28399, 40570, 56798, 141995, 283990, 296161, 592322, 1480805, 2073127, 2961610, 4146254, 10365635, 20731270]

約数ペア:

[(1, 20731270), (2, 10365635), (5, 4146254), (7, 2961610), (10, 2073127), (14, 1480805), (35, 592322), (70, 296161), (73, 283990), (146, 141995), (365, 56798), (511, 40570), (730, 28399), (1022, 20285), (2555, 8114), (4057, 5110)]