20487888

素因数分解:

$2^4\times 3^2\times {\mathrm{73}}^1\times {\mathrm{1949}}^1$

素因数の和:2036

約数の個数: 60

約数和(自身を含む): 58152900

約数和(自身を除く): 37665012

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 73, 144, 146, 219, 292, 438, 584, 657, 876, 1168, 1314, 1752, 1949, 2628, 3504, 3898, 5256, 5847, 7796, 10512, 11694, 15592, 17541, 23388, 31184, 35082, 46776, 70164, 93552, 140328, 142277, 280656, 284554, 426831, 569108, 853662, 1138216, 1280493, 1707324, 2276432, 2560986, 3414648, 5121972, 6829296, 10243944, 20487888]

約数ペア:

[(1, 20487888), (2, 10243944), (3, 6829296), (4, 5121972), (6, 3414648), (8, 2560986), (9, 2276432), (12, 1707324), (16, 1280493), (18, 1138216), (24, 853662), (36, 569108), (48, 426831), (72, 284554), (73, 280656), (144, 142277), (146, 140328), (219, 93552), (292, 70164), (438, 46776), (584, 35082), (657, 31184), (876, 23388), (1168, 17541), (1314, 15592), (1752, 11694), (1949, 10512), (2628, 7796), (3504, 5847), (3898, 5256)]