142788440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{209983}}^1$

素因数の和:210011

約数の個数: 32

約数和(自身を含む): 340174080

約数和(自身を除く): 197385640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 209983, 419966, 839932, 1049915, 1679864, 2099830, 3569711, 4199660, 7139422, 8399320, 14278844, 17848555, 28557688, 35697110, 71394220, 142788440]

約数ペア:

[(1, 142788440), (2, 71394220), (4, 35697110), (5, 28557688), (8, 17848555), (10, 14278844), (17, 8399320), (20, 7139422), (34, 4199660), (40, 3569711), (68, 2099830), (85, 1679864), (136, 1049915), (170, 839932), (340, 419966), (680, 209983)]