1286840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{607}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 2954880

約数和(自身を除く): 1668040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 607, 1060, 1214, 2120, 2428, 3035, 4856, 6070, 12140, 24280, 32171, 64342, 128684, 160855, 257368, 321710, 643420, 1286840]

約数ペア:

[(1, 1286840), (2, 643420), (4, 321710), (5, 257368), (8, 160855), (10, 128684), (20, 64342), (40, 32171), (53, 24280), (106, 12140), (212, 6070), (265, 4856), (424, 3035), (530, 2428), (607, 2120), (1060, 1214)]