20003608

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 38502000

約数和(自身を除く): 18498392

約数列:

[1, 2, 4, 8, 61, 122, 179, 229, 244, 358, 458, 488, 716, 916, 1432, 1832, 10919, 13969, 21838, 27938, 40991, 43676, 55876, 81982, 87352, 111752, 163964, 327928, 2500451, 5000902, 10001804, 20003608]

約数ペア:

[(1, 20003608), (2, 10001804), (4, 5000902), (8, 2500451), (61, 327928), (122, 163964), (179, 111752), (229, 87352), (244, 81982), (358, 55876), (458, 43676), (488, 40991), (716, 27938), (916, 21838), (1432, 13969), (1832, 10919)]