28978775

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3851}}^1$

素因数の和:3911

約数の個数: 24

約数和(自身を含む): 42033024

約数和(自身を除く): 13054249

約数列:

[1, 5, 7, 25, 35, 43, 175, 215, 301, 1075, 1505, 3851, 7525, 19255, 26957, 96275, 134785, 165593, 673925, 827965, 1159151, 4139825, 5795755, 28978775]

約数ペア:

[(1, 28978775), (5, 5795755), (7, 4139825), (25, 1159151), (35, 827965), (43, 673925), (175, 165593), (215, 134785), (301, 96275), (1075, 26957), (1505, 19255), (3851, 7525)]