406840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1453}}^1$

素因数の和:1471

約数の個数: 32

約数和(自身を含む): 1046880

約数和(自身を除く): 640040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1453, 2906, 5812, 7265, 10171, 11624, 14530, 20342, 29060, 40684, 50855, 58120, 81368, 101710, 203420, 406840]

約数ペア:

[(1, 406840), (2, 203420), (4, 101710), (5, 81368), (7, 58120), (8, 50855), (10, 40684), (14, 29060), (20, 20342), (28, 14530), (35, 11624), (40, 10171), (56, 7265), (70, 5812), (140, 2906), (280, 1453)]