28904975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1181}}^1$

素因数の和:1291

約数の個数: 24

約数和(自身を含む): 39573360

約数和(自身を除く): 10668385

約数列:

[1, 5, 11, 25, 55, 89, 275, 445, 979, 1181, 2225, 4895, 5905, 12991, 24475, 29525, 64955, 105109, 324775, 525545, 1156199, 2627725, 5780995, 28904975]

約数ペア:

[(1, 28904975), (5, 5780995), (11, 2627725), (25, 1156199), (55, 525545), (89, 324775), (275, 105109), (445, 64955), (979, 29525), (1181, 24475), (2225, 12991), (4895, 5905)]