10800020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7013}}^1$

素因数の和:7040

約数の個数: 48

約数和(自身を含む): 28280448

約数和(自身を除く): 17480428

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 7013, 14026, 28052, 35065, 49091, 70130, 77143, 98182, 140260, 154286, 196364, 245455, 308572, 385715, 490910, 540001, 771430, 981820, 1080002, 1542860, 2160004, 2700005, 5400010, 10800020]

約数ペア:

[(1, 10800020), (2, 5400010), (4, 2700005), (5, 2160004), (7, 1542860), (10, 1080002), (11, 981820), (14, 771430), (20, 540001), (22, 490910), (28, 385715), (35, 308572), (44, 245455), (55, 196364), (70, 154286), (77, 140260), (110, 98182), (140, 77143), (154, 70130), (220, 49091), (308, 35065), (385, 28052), (770, 14026), (1540, 7013)]