203974520

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{5749}}^1$

素因数の和:6647

約数の個数: 32

約数和(自身を含む): 459540000

約数和(自身を除く): 255565480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 3548, 4435, 5749, 7096, 8870, 11498, 17740, 22996, 28745, 35480, 45992, 57490, 114980, 229960, 5099363, 10198726, 20397452, 25496815, 40794904, 50993630, 101987260, 203974520]

約数ペア:

[(1, 203974520), (2, 101987260), (4, 50993630), (5, 40794904), (8, 25496815), (10, 20397452), (20, 10198726), (40, 5099363), (887, 229960), (1774, 114980), (3548, 57490), (4435, 45992), (5749, 35480), (7096, 28745), (8870, 22996), (11498, 17740)]