199984760

素因数分解:

$2^3\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{2333}}^1$

素因数の和:4487

約数の個数: 32

約数和(自身を含む): 450368640

約数和(自身を除く): 250383880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2143, 2333, 4286, 4666, 8572, 9332, 10715, 11665, 17144, 18664, 21430, 23330, 42860, 46660, 85720, 93320, 4999619, 9999238, 19998476, 24998095, 39996952, 49996190, 99992380, 199984760]

約数ペア:

[(1, 199984760), (2, 99992380), (4, 49996190), (5, 39996952), (8, 24998095), (10, 19998476), (20, 9999238), (40, 4999619), (2143, 93320), (2333, 85720), (4286, 46660), (4666, 42860), (8572, 23330), (9332, 21430), (10715, 18664), (11665, 17144)]