28135975

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3739}}^1$

素因数の和:3799

約数の個数: 24

約数和(自身を含む): 40810880

約数和(自身を除く): 12674905

約数列:

[1, 5, 7, 25, 35, 43, 175, 215, 301, 1075, 1505, 3739, 7525, 18695, 26173, 93475, 130865, 160777, 654325, 803885, 1125439, 4019425, 5627195, 28135975]

約数ペア:

[(1, 28135975), (5, 5627195), (7, 4019425), (25, 1125439), (35, 803885), (43, 654325), (175, 160777), (215, 130865), (301, 93475), (1075, 26173), (1505, 18695), (3739, 7525)]