20815752

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 55615680

約数和(自身を除く): 34799928

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 163, 204, 313, 326, 408, 489, 626, 652, 939, 978, 1252, 1304, 1878, 1956, 2504, 2771, 3756, 3912, 5321, 5542, 7512, 8313, 10642, 11084, 15963, 16626, 21284, 22168, 31926, 33252, 42568, 51019, 63852, 66504, 102038, 127704, 153057, 204076, 306114, 408152, 612228, 867323, 1224456, 1734646, 2601969, 3469292, 5203938, 6938584, 10407876, 20815752]

約数ペア:

[(1, 20815752), (2, 10407876), (3, 6938584), (4, 5203938), (6, 3469292), (8, 2601969), (12, 1734646), (17, 1224456), (24, 867323), (34, 612228), (51, 408152), (68, 306114), (102, 204076), (136, 153057), (163, 127704), (204, 102038), (313, 66504), (326, 63852), (408, 51019), (489, 42568), (626, 33252), (652, 31926), (939, 22168), (978, 21284), (1252, 16626), (1304, 15963), (1878, 11084), (1956, 10642), (2504, 8313), (2771, 7512), (3756, 5542), (3912, 5321)]