203438440

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{22807}}^1$

素因数の和:23041

約数の個数: 32

約数和(自身を含む): 459809280

約数和(自身を除く): 256370840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 22807, 45614, 91228, 114035, 182456, 228070, 456140, 912280, 5085961, 10171922, 20343844, 25429805, 40687688, 50859610, 101719220, 203438440]

約数ペア:

[(1, 203438440), (2, 101719220), (4, 50859610), (5, 40687688), (8, 25429805), (10, 20343844), (20, 10171922), (40, 5085961), (223, 912280), (446, 456140), (892, 228070), (1115, 182456), (1784, 114035), (2230, 91228), (4460, 45614), (8920, 22807)]