1989904

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 40

約数和(自身を含む): 4473920

約数和(自身を除く): 2484016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 163, 218, 326, 436, 652, 763, 872, 1141, 1304, 1526, 1744, 2282, 2608, 3052, 4564, 6104, 9128, 12208, 17767, 18256, 35534, 71068, 124369, 142136, 248738, 284272, 497476, 994952, 1989904]

約数ペア:

[(1, 1989904), (2, 994952), (4, 497476), (7, 284272), (8, 248738), (14, 142136), (16, 124369), (28, 71068), (56, 35534), (109, 18256), (112, 17767), (163, 12208), (218, 9128), (326, 6104), (436, 4564), (652, 3052), (763, 2608), (872, 2282), (1141, 1744), (1304, 1526)]