29880520

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{2777}}^1$

素因数の和:3057

約数の個数: 32

約数和(自身を含む): 67505400

約数和(自身を除く): 37624880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 2777, 5380, 5554, 10760, 11108, 13885, 22216, 27770, 55540, 111080, 747013, 1494026, 2988052, 3735065, 5976104, 7470130, 14940260, 29880520]

約数ペア:

[(1, 29880520), (2, 14940260), (4, 7470130), (5, 5976104), (8, 3735065), (10, 2988052), (20, 1494026), (40, 747013), (269, 111080), (538, 55540), (1076, 27770), (1345, 22216), (2152, 13885), (2690, 11108), (2777, 10760), (5380, 5554)]