20490512

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9629}}^1$

素因数の和:9663

約数の個数: 40

約数和(自身を含む): 47764800

約数和(自身を除く): 27274288

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9629, 19258, 38516, 67403, 77032, 134806, 154064, 182951, 269612, 365902, 539224, 731804, 1078448, 1280657, 1463608, 2561314, 2927216, 5122628, 10245256, 20490512]

約数ペア:

[(1, 20490512), (2, 10245256), (4, 5122628), (7, 2927216), (8, 2561314), (14, 1463608), (16, 1280657), (19, 1078448), (28, 731804), (38, 539224), (56, 365902), (76, 269612), (112, 182951), (133, 154064), (152, 134806), (266, 77032), (304, 67403), (532, 38516), (1064, 19258), (2128, 9629)]