178891270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1\times {\mathrm{1091}}^1$

素因数の和:1980

約数の個数: 32

約数和(自身を含む): 339655680

約数和(自身を除く): 160764410

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 863, 1091, 1726, 2182, 4315, 5455, 8630, 10910, 16397, 20729, 32794, 41458, 81985, 103645, 163970, 207290, 941533, 1883066, 4707665, 9415330, 17889127, 35778254, 89445635, 178891270]

約数ペア:

[(1, 178891270), (2, 89445635), (5, 35778254), (10, 17889127), (19, 9415330), (38, 4707665), (95, 1883066), (190, 941533), (863, 207290), (1091, 163970), (1726, 103645), (2182, 81985), (4315, 41458), (5455, 32794), (8630, 20729), (10910, 16397)]