30991175

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 39806976

約数和(自身を除く): 8815801

約数列:

[1, 5, 25, 43, 127, 215, 227, 635, 1075, 1135, 3175, 5461, 5675, 9761, 27305, 28829, 48805, 136525, 144145, 244025, 720725, 1239647, 6198235, 30991175]

約数ペア:

[(1, 30991175), (5, 6198235), (25, 1239647), (43, 720725), (127, 244025), (215, 144145), (227, 136525), (635, 48805), (1075, 28829), (1135, 27305), (3175, 9761), (5461, 5675)]