27808520

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3529}}^1$

素因数の和:3737

約数の個数: 32

約数和(自身を含む): 62904600

約数和(自身を除く): 35096080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3529, 3940, 7058, 7880, 14116, 17645, 28232, 35290, 70580, 141160, 695213, 1390426, 2780852, 3476065, 5561704, 6952130, 13904260, 27808520]

約数ペア:

[(1, 27808520), (2, 13904260), (4, 6952130), (5, 5561704), (8, 3476065), (10, 2780852), (20, 1390426), (40, 695213), (197, 141160), (394, 70580), (788, 35290), (985, 28232), (1576, 17645), (1970, 14116), (3529, 7880), (3940, 7058)]