4380140

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{563}}^1$

素因数の和:961

約数の個数: 24

約数和(自身を含む): 9238320

約数和(自身を除く): 4858180

約数列:

[1, 2, 4, 5, 10, 20, 389, 563, 778, 1126, 1556, 1945, 2252, 2815, 3890, 5630, 7780, 11260, 219007, 438014, 876028, 1095035, 2190070, 4380140]

約数ペア:

[(1, 4380140), (2, 2190070), (4, 1095035), (5, 876028), (10, 438014), (20, 219007), (389, 11260), (563, 7780), (778, 5630), (1126, 3890), (1556, 2815), (1945, 2252)]