20187944

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 46310400

約数和(自身を除く): 26122456

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 31, 56, 58, 62, 116, 124, 203, 217, 232, 248, 401, 406, 434, 802, 812, 868, 899, 1604, 1624, 1736, 1798, 2807, 3208, 3596, 5614, 6293, 7192, 11228, 11629, 12431, 12586, 22456, 23258, 24862, 25172, 46516, 49724, 50344, 81403, 87017, 93032, 99448, 162806, 174034, 325612, 348068, 360499, 651224, 696136, 720998, 1441996, 2523493, 2883992, 5046986, 10093972, 20187944]

約数ペア:

[(1, 20187944), (2, 10093972), (4, 5046986), (7, 2883992), (8, 2523493), (14, 1441996), (28, 720998), (29, 696136), (31, 651224), (56, 360499), (58, 348068), (62, 325612), (116, 174034), (124, 162806), (203, 99448), (217, 93032), (232, 87017), (248, 81403), (401, 50344), (406, 49724), (434, 46516), (802, 25172), (812, 24862), (868, 23258), (899, 22456), (1604, 12586), (1624, 12431), (1736, 11629), (1798, 11228), (2807, 7192), (3208, 6293), (3596, 5614)]