2139980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1597}}^1$

素因数の和:1673

約数の個数: 24

約数和(自身を含む): 4563888

約数和(自身を除く): 2423908

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 1597, 3194, 6388, 7985, 15970, 31940, 106999, 213998, 427996, 534995, 1069990, 2139980]

約数ペア:

[(1, 2139980), (2, 1069990), (4, 534995), (5, 427996), (10, 213998), (20, 106999), (67, 31940), (134, 15970), (268, 7985), (335, 6388), (670, 3194), (1340, 1597)]