28604975

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1229}}^1$

素因数の和:1272

約数の個数: 36

約数和(自身を含む): 43468200

約数和(自身を除く): 14863225

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 665, 931, 1225, 1229, 3325, 4655, 6145, 8603, 23275, 23351, 30725, 43015, 60221, 116755, 163457, 215075, 301105, 583775, 817285, 1144199, 1505525, 4086425, 5720995, 28604975]

約数ペア:

[(1, 28604975), (5, 5720995), (7, 4086425), (19, 1505525), (25, 1144199), (35, 817285), (49, 583775), (95, 301105), (133, 215075), (175, 163457), (245, 116755), (475, 60221), (665, 43015), (931, 30725), (1225, 23351), (1229, 23275), (3325, 8603), (4655, 6145)]