20187520375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{201121}}^1$

素因数の和:201220

約数の個数: 32

約数和(自身を含む): 27861028416

約数和(自身を除く): 7673508041

約数列:

[1, 5, 11, 25, 55, 73, 125, 275, 365, 803, 1375, 1825, 4015, 9125, 20075, 100375, 201121, 1005605, 2212331, 5028025, 11061655, 14681833, 25140125, 55308275, 73409165, 161500163, 276541375, 367045825, 807500815, 1835229125, 4037504075, 20187520375]

約数ペア:

[(1, 20187520375), (5, 4037504075), (11, 1835229125), (25, 807500815), (55, 367045825), (73, 276541375), (125, 161500163), (275, 73409165), (365, 55308275), (803, 25140125), (1375, 14681833), (1825, 11061655), (4015, 5028025), (9125, 2212331), (20075, 1005605), (100375, 201121)]