31780168

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7993}}^1$

素因数の和:8077

約数の個数: 32

約数和(自身を含む): 69068160

約数和(自身を除く): 37287992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 7993, 15986, 31972, 55951, 63944, 111902, 223804, 447608, 567503, 1135006, 2270012, 3972521, 4540024, 7945042, 15890084, 31780168]

約数ペア:

[(1, 31780168), (2, 15890084), (4, 7945042), (7, 4540024), (8, 3972521), (14, 2270012), (28, 1135006), (56, 567503), (71, 447608), (142, 223804), (284, 111902), (497, 63944), (568, 55951), (994, 31972), (1988, 15986), (3976, 7993)]