20740552

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 47491200

約数和(自身を除く): 26750648

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 101, 133, 152, 193, 202, 266, 386, 404, 532, 707, 772, 808, 1064, 1351, 1414, 1544, 1919, 2702, 2828, 3667, 3838, 5404, 5656, 7334, 7676, 10808, 13433, 14668, 15352, 19493, 25669, 26866, 29336, 38986, 51338, 53732, 77972, 102676, 107464, 136451, 155944, 205352, 272902, 370367, 545804, 740734, 1091608, 1481468, 2592569, 2962936, 5185138, 10370276, 20740552]

約数ペア:

[(1, 20740552), (2, 10370276), (4, 5185138), (7, 2962936), (8, 2592569), (14, 1481468), (19, 1091608), (28, 740734), (38, 545804), (56, 370367), (76, 272902), (101, 205352), (133, 155944), (152, 136451), (193, 107464), (202, 102676), (266, 77972), (386, 53732), (404, 51338), (532, 38986), (707, 29336), (772, 26866), (808, 25669), (1064, 19493), (1351, 15352), (1414, 14668), (1544, 13433), (1919, 10808), (2702, 7676), (2828, 7334), (3667, 5656), (3838, 5404)]