81144175

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 121420800

約数和(自身を除く): 40276625

約数列:

[1, 5, 7, 25, 29, 35, 59, 145, 175, 203, 271, 295, 413, 725, 1015, 1355, 1475, 1711, 1897, 2065, 5075, 6775, 7859, 8555, 9485, 10325, 11977, 15989, 39295, 42775, 47425, 55013, 59885, 79945, 111923, 196475, 275065, 299425, 399725, 463681, 559615, 1375325, 2318405, 2798075, 3245767, 11592025, 16228835, 81144175]

約数ペア:

[(1, 81144175), (5, 16228835), (7, 11592025), (25, 3245767), (29, 2798075), (35, 2318405), (59, 1375325), (145, 559615), (175, 463681), (203, 399725), (271, 299425), (295, 275065), (413, 196475), (725, 111923), (1015, 79945), (1355, 59885), (1475, 55013), (1711, 47425), (1897, 42775), (2065, 39295), (5075, 15989), (6775, 11977), (7859, 10325), (8555, 9485)]