27988280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{18911}}^1$

素因数の和:18959

約数の個数: 32

約数和(自身を含む): 64679040

約数和(自身を除く): 36690760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 18911, 37822, 75644, 94555, 151288, 189110, 378220, 699707, 756440, 1399414, 2798828, 3498535, 5597656, 6997070, 13994140, 27988280]

約数ペア:

[(1, 27988280), (2, 13994140), (4, 6997070), (5, 5597656), (8, 3498535), (10, 2798828), (20, 1399414), (37, 756440), (40, 699707), (74, 378220), (148, 189110), (185, 151288), (296, 94555), (370, 75644), (740, 37822), (1480, 18911)]