20783152

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{613}}^1$

素因数の和:797

約数の個数: 40

約数和(自身を含む): 43702064

約数和(自身を除く): 22918912

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 163, 208, 326, 613, 652, 1226, 1304, 2119, 2452, 2608, 4238, 4904, 7969, 8476, 9808, 15938, 16952, 31876, 33904, 63752, 99919, 127504, 199838, 399676, 799352, 1298947, 1598704, 2597894, 5195788, 10391576, 20783152]

約数ペア:

[(1, 20783152), (2, 10391576), (4, 5195788), (8, 2597894), (13, 1598704), (16, 1298947), (26, 799352), (52, 399676), (104, 199838), (163, 127504), (208, 99919), (326, 63752), (613, 33904), (652, 31876), (1226, 16952), (1304, 15938), (2119, 9808), (2452, 8476), (2608, 7969), (4238, 4904)]