256047730

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{8009}}^1$

素因数の和:8178

約数の個数: 32

約数和(自身を含む): 484444800

約数和(自身を除く): 228397070

約数列:

[1, 2, 5, 10, 23, 46, 115, 139, 230, 278, 695, 1390, 3197, 6394, 8009, 15985, 16018, 31970, 40045, 80090, 184207, 368414, 921035, 1113251, 1842070, 2226502, 5566255, 11132510, 25604773, 51209546, 128023865, 256047730]

約数ペア:

[(1, 256047730), (2, 128023865), (5, 51209546), (10, 25604773), (23, 11132510), (46, 5566255), (115, 2226502), (139, 1842070), (230, 1113251), (278, 921035), (695, 368414), (1390, 184207), (3197, 80090), (6394, 40045), (8009, 31970), (15985, 16018)]