20653725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 16093923

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 97, 167, 255, 291, 425, 485, 501, 835, 1275, 1455, 1649, 2425, 2505, 2839, 4175, 4947, 7275, 8245, 8517, 12525, 14195, 16199, 24735, 41225, 42585, 48597, 70975, 80995, 123675, 212925, 242985, 275383, 404975, 826149, 1214925, 1376915, 4130745, 6884575, 20653725]

約数ペア:

[(1, 20653725), (3, 6884575), (5, 4130745), (15, 1376915), (17, 1214925), (25, 826149), (51, 404975), (75, 275383), (85, 242985), (97, 212925), (167, 123675), (255, 80995), (291, 70975), (425, 48597), (485, 42585), (501, 41225), (835, 24735), (1275, 16199), (1455, 14195), (1649, 12525), (2425, 8517), (2505, 8245), (2839, 7275), (4175, 4947)]